The main story will be updated tomorrow, but due to requests, I’m posting the character introductions ahead of schedule.
To avoid confusion, this will only include characters who are currently alive.
Character Introductions (as of Chapter 70) *Minor spoilers included.
□ Aria (Alicia Melrose): Human (Mersenian) 
The protagonist of this story. The heroine of the Earth-made otome game “In Love With Silver Wings.”
Attacked by a reincarnated person trying to take her place as the heroine, she gains fragmented knowledge and begins training herself to escape the fate of the otome game’s heroine.
Perhaps due to her knowledge, she is more detached than others her age. Her personality is not so much cold or indifferent, but rather that of an ultimate “efficiency freak,” choosing “murder” as the quickest solution to problems.
The reason she seeks power so stoically is because it is more “efficient.”
Therefore, she sometimes chooses not to “kill” to solve problems.
She has emerald green eyes. Her pinkish-blonde hair is inherited only by the direct female line of the old Melrose royal family.
She is not so much uninterested in romance as she has knowledge but has not yet understood it.
Combat Style: Assassin, Illusionist
[Villainous Noblewomen]
□ Elena Claydale: Human (Mersenian) <±0>
The first princess of the Kingdom of Claydale. Her mother is the Second Queen.
She loves her half-brother, the Crown Prince, and persecutes the heroine at the academy.
She received strict education from the Second Queen to put her daughter on the throne, and acquired four magic attributes, but lost her healthy body due to the magic stones that had become enlarged by the four attributes.
Her obsession with her brother is to show both internally and externally that she is “Royalist Faction” rather than “Aristocratic Faction,” and she is prepared to become a short-term queen to bridge the gap until her brother’s second prince or the Crown Prince’s child comes of age if her brother is unfit to be the next king.
She and Aria are more “comrades” than friends.
Elena swore to save Aria even if it meant abandoning her position only once in a crisis, and Aria swore to kill Elena’s enemy, even if it was the king, only once for her sake.
A picture-perfect princess with blonde hair and blue eyes.
Combat Style: Magician
□ Clara Dandole: Human (Mersenian) <+1>
The daughter of the Margrave of Dandole, who oversees the military affairs of the Kingdom of Claydale.
She is the Crown Prince’s primary fiancée and is working behind the scenes to trap and eliminate the heroine who is on intimate terms with the Crown Prince.
In reality, she is a “reincarnated person” with memories of her previous life, and she knows that she is a “villainous noblewoman” in the otome game, so she is trying to avoid being condemned, but she is mostly spinning her wheels.
She is genuinely afraid of the heroine’s power to bewitch the target characters.
Elena is her cousin, but she is wary of her because she knows that she is also a villainous noblewoman, and although they used to be like sisters, there is now a rift between them.
With slightly upturned silver eyes and red hair, she is an easily imagined villainous noblewoman.
Combat Style: Magician, Light Warrior
□ Carla Leicester: Human (Mersenian) <±0>
One of the Crown Prince’s fiancées, and the daughter of the Count Leicester Estate, a prestigious family of magic that has produced many chief court magicians.
She likes the innocent Crown Prince as a “toy” and is a dangerous person who tries to hurt the women he is interested in right in front of his eyes.
She has acquired all magic attributes due to experiments by the Leicester family since she was a child, but as a result, her HP is only that of an infant.
In the otome game, Carla is the last one to stand in the way no matter which route you take. But in reality, she liked the innocent heroine because she wanted to “taint” her, just like the Crown Prince.
She seems to have something in common with the current Aria in terms of how they exist.
Black hair, purple eyes. There are terrible dark circles around her eyes, and her appearance, like her inner self, is “sickly.”
Combat Style: Archmage
[Target Characters]
Characters that the heroine can capture in the otome game.
■ Elvan von Claydale: Human (Mersenian) 
<+1>
The Crown Prince of the great Kingdom of Claydale.
Because his mother was the daughter of a viscount who became queen without planning, he has little pride or sense of mission as a member of the royal family. Therefore, when he was intimidated by his fiancées, who were all upper nobles, he met the heroine who was working hard and fell in love with her, and he grows up to protect her.
Blonde hair and blue eyes, he is a bit slender, but he looks like a prince on a white horse.
■ Rookwell Dandole: Human (Mersenian) <+2>
The eldest son of the current Grand Knight Commander, the Margrave of Dandole.
Sincere, noble, and kind, he is loved by everyone. He falls in love for the first time through his interactions with the heroine.
With dark red hair and silver eyes, he is tall. In terms of coloring, he is wild, but gentlemanly.
■ Mikhail Melrose: Human (Mersenian) <+2>
The legitimate grandson of the current Prime Minister, the Margrave Melrose. Aria’s cousin.
He was frustrated with the heroine, who had no abilities as a Melrose, but when he learned that she was working hard behind her smile, he began to think of her as a younger sister, and that feeling turned into love.
Reddish strawberry honey blonde hair and viridian eyes. He has sweet features.
■ Theo Leighton: Human (Cruz) <-1>
The only son of the Leighton Baron family.
He accompanies the heroine, the daughter of a viscount who knows nothing of the world, to the academy as her butler. He is a Shadow Knight dispatched from Melrose and was ordered to protect the heroine from the shadows.
He had talent, but he was capricious and did not take his guard duties seriously, but he was inspired by the heroine’s efforts and awakens for the sake of the heroine he loves.
Tan skin, black hair, and blue-gray eyes. He is a mischievous type.
Currently, he is desperately training to “take responsibility.”
■ Nasanitaru Ostol: Human (Mersenian) <±0>
Grandson of the Baron of Law Robes and the head of the Holy Church Temple in the Kingdom of Claydale.
Brunette hair and orange eyes.
■ Amor Claydale: Human (Mersenian) <+13>
The youngest half-brother of the current king.
Slightly dark blonde hair. Navy blue eyes.
■ ???
Evil Race. Hidden character.
[Fake Heroine]
□ Alicia Melsys: Human (Mersenian) <±0>
Real name unknown, origin unknown. Adopted daughter of Viscount Melsys.
A girl who has acquired knowledge about the “Otome Game” that Aria could not obtain.
Sympathizing with the voice from the magic stone, she tries to capture the characters using her knowledge of the otome game in order to become a “happy heroine.”
Reddish dark blonde hair and blue eyes. She understands that she has a lovely appearance and naturally shows gestures that rely on men rather than women.
Like Aria, she decided to use that knowledge on her own, and unlike Aria, she is absorbed in the magic stone that gives her knowledge.
[Adventurers]
A mercenary organization specializing in exploring unexplored lands. It has now become a jack-of-all-trades, but high-ranking members still receive various preferential treatment.
■ Feld Ruin (Tungs): Human (Mersenian) <+13>
A member of the Rank 5 adventurer party “Rainbow Sword.”
He met Aria in the first chapter and is a good-natured person who taught her how to train to live without ulterior motives.
Black hair, blue eyes, tall and muscular. As a result, he is often mistaken for being older than his actual age, which is a concern for him.
Combat Style: Two-Handed Swordsman [Rank 5]
■ Viro Dawn: Human (Mersenian) <+28>
A member of the Rank 5 adventurer party “Rainbow Sword.”
Aria’s scout-type mentor. He is good at his job, but from a child’s point of view, he is a bad adult. He is basically a good person, so you can’t hate him.
Medium build, brown hair, and brown eyes that are close to black.
Combat Style: Scout Light Warrior [Rank 4]
□ Miranda MoMo: Forest Elf
A member of the Rank 5 adventurer party “Rainbow Sword.”
One of the founders of “Rainbow Sword.” She is an elf woman who looks about twenty years old. She has been active in human society for nearly a hundred years, and her sharp elf-like personality has been worn down and rounded out.
Chestnut hair and light green eyes. She is slightly plumper than the average elf.
Combat Style: Spirit Magician, Hunter [Rank 4]
■ Dolton Rockwall: Mountain Dwarf
Leader of the Rank 5 adventurer party “Rainbow Sword.”
The person who created the adventurer party “Rainbow Sword” a hundred years ago. He has been on intimate terms with the Melrose family since then, and they trust each other.
Dark brown hair and black eyes. His beard is braided. He is larger than the average dwarf and has a height close to that of a human.
Combat Style: Heavy Warrior [Rank 5]
□ Samantha Samantha: Human (Mersenian)
Former member of the Rank 5 adventurer party “Rainbow Sword.”
One of the founders of the Rainbow Sword. An old woman with a Yokai-like appearance and personality. A very powerful magician known as the “Sand Dust Witch.”
She recently retired, citing senility as the reason, but her skills are still comparable to her active days. People around her think she’s senile, but it’s unclear if she really is.
Silver (white) hair and reddish-purple eyes.
Combat Style: Magician [Rank 5]
【Shadow Unit】
A national organization that governs the underbelly of the Kingdom of Claydale. Its main tasks are to gather information both domestically and internationally, protect key figures, and sometimes even purge nobles.
□ Sera Leighton: Human (Cruz) 〈+20〉
Theo’s biological mother. Lady Leighton of the Baron Leighton House. She retired after getting married, but due to a shortage of personnel, she returned to work with her young son as a Shadow Knight. Her husband cries because he can only see his beloved wife and child a few times a year.
A cool beauty with brunette hair and blue eyes. Aria’s combat maid-type mentor.
Because she has children of the same age, she is well-disposed towards Aria.
Combat Style: Scout-type Light Warrior, Light Magician [Rank 4]
■ Oz Sildren: Human (Cruz) 〈+18〉
The heir of the Sildren Baron House, a family within the Shadow Unit. Sera’s younger brother.
Currently, he is a highly capable Shadow Knight serving as a butler and secretary to the head of the Melrose Margrave House, who also serves as the Prime Minister. He serves the Melrose House more than the country.
A refreshing young man with brunette hair and blue eyes.
Combat Style: Scout-type Light Warrior [Rank 3]
■ Grave: Human (Mersenian) 〈+33〉
Formerly a noble son from the Fundoria Theocracy. His father lost in a power struggle, and he and his mother relied on Hoss, a friend of Sera’s and their grandfather, in the Kingdom of Claydale. However, his mother collapsed during the journey, and the harsh reality of his childhood led him to believe that “if the royal family held power correctly, the country would not be in chaos.”
He holds the dangerous idea that if it’s for the stability of the nation and the royal family, even royalty and high-ranking nobles can be harmed. He opposes Aria because she has a similar dangerous “aura” and tries to protect the Princess.
Currently, he has left the Shadow Unit organization for violating orders and is working independently behind the scenes.
Silver hair, almost black, and dark red eyes.
Combat Style: Dual-Wielding Warrior [Rank 5]
■ Castro: Human (Mersenian) 〈+25〉
A former Adventurer scout who joined the Shadow Unit through Viro’s introduction.
His personality is earnest, but he is inflexible and narrow-minded.
He despises his slum origins and criminal background, and shows abnormal hostility towards those from the slums.
He regrets endangering Aria unintentionally, but he hasn’t apologized. From Aria’s perspective, he is an “insignificant” person she had no reason to kill.
Combat Style: Light Warrior [Rank 3]
【Nobility】
The royal family is at the top, followed by the high-ranking nobles who lead the surrounding nobles such as Dukes, Marquises, and Counts.
The middle-ranking nobles, such as Viscounts and Barons, who own territories.
The lower-ranking nobles, such as Baronets, Knights, and lifetime Peers, who serve them govern the people.
■ Belt Fa Melrose: Human (Mersenian) 〈+50〉
The current Prime Minister of the Kingdom of Claydale and the head of the Melrose Margrave House. Aria’s grandfather.
Due to past political circumstances, the Melrose House has a significant influence on the nation’s internal affairs, and traditionally holds not only the position of Prime Minister but also the head of the intelligence department, the Shadow Unit.
Reddish-gold hair and jade-colored eyes.
He is searching for Alicia, the child of his youngest daughter who eloped and died.
However, the granddaughter he found did not have the pink hair that is the mark of the Melrose House’s female lineage, so he suspected Aria, who was the same age and had pink hair.
□ Patricia Foodale: Human (Mersenian) 〈+3〉
The daughter of the second wife of the Duke Foodale House. The Duke House, which had no suitable daughter from the first wife, pushed her into being the Crown Prince’s fiancée as a candidate for Queen.
She is two years older than the Crown Prince, and because she is the child of the second wife, neither the Duke House nor she herself expect her to become the Queen, so she takes a step back from the two fiancées.
Originally, she was never meant to be Queen, so she was raised like a delicate flower, and has a gentle personality unsuited for conflict.
Fluffy, light silver hair and sky-blue eyes, she is soft in both good and bad ways.
【Other】
□ Serejula: Dark Elf 〈Age Unknown〉
A Dark Elf woman called a “Evil Race,” the enemy of humans on this continent.
One of the strongest among the Evil Race, she was feared as the “War Demon” on the eastern front during the war with humans, but she realized that she had nothing but fighting and became disgusted, so she left the Evil Race.
Aria’s magic and alchemy mentor. She is a compassionate person, and Aria trusts her.
She is a beautiful woman in her thirties with silver hair and lustrous black skin, but having interacted with humans for many years, she refers to herself as “old woman.”
Combat Style: Magician, Light Warrior [Rank 5]
■ Galbas: Rock Dwarf 〈Age Unknown〉
Rock Dwarves who live in mines are skilled at blacksmithing, and he became a blacksmith in human territory during the era when the war between humans and Evil Race was intensifying.
A well-known master craftsman who only makes weapons for people he likes. He is eccentric, but he sometimes makes cheap weapons for young Adventurers that are suitable for them.
Reddish-dark hair and black eyes. Muscular.
■ Gelf: Rock Dwarf 〈Age Unknown〉
A man with the heart of a woman who runs an Armor Shop in the Royal Capital. He is often mistaken for a Mountain Dwarf who is good at crafting, but he is a proper Rock Dwarf and Galbas’s younger brother.
He makes “cute armor” for cute girls to wear, and provides armor to Aria, who has a good appearance and model figure.
Reddish-dark hair and black eyes. Sexy type.
■ Victor: Human (Mersenian) 〈Age Unknown〉
The owner of a general store. Unknown background. He is eccentric but honest in business, and he takes an interest in Aria, who has a different atmosphere from ordinary people. He and Galbas are drinking buddies and fighting friends who call each other eccentric old men.
Brunette hair and light brown eyes.
■ Jill: Human (Mersenian) 〈+3〉
An orphan from the slums. He is curious about Aria.
Brown hair and blue-silver eyes.
□ Shuri: Human (Mersenian) 〈±0〉
An orphan from the slums. She mistakes Aria for a boy and is curious about her.
Brown hair and blue-silver eyes.
□ Mary: Human (Mersenian) 〈+20〉
A receptionist at the Adventurer’s Guild. She is beautiful and kind to children, but sharp-tongued towards Viro.
Chestnut-colored long hair and orange eyes.
I know there is a lot of missing information, but I will update it as needed to avoid too many spoilers at this point.
See you in the main story.