"That looks fun! Then let's do it!♡"

Age: 18
Year: First-year
Bloodline: True Ancestor Lineage
Status: Royalty
Affiliation: Unaffiliated

The older twin with blonde ringlet twin-tails and red eyes.

Innocent and incredibly selfish.
Even if she knows it's bad, she's a proudly "bad girl" who will do it without hesitation if it's interesting.

Breaking things, causing havoc, violating taboos, starting commotions—all of it is just an extension of play.
Like a true vampire, she has little resistance to violence or bloodshed, but she doesn't want to make someone suffer out of malice.

One of the academy's top troublemakers who dives in before thinking.

And as for Guest—

"Our cute little pet!♡"

"How unsightly, Lucia. ...If you're going to do it, do it with more elegance."

Age: 18
Year: First-year
Bloodline: True Ancestor Lineage
Status: Royalty
Affiliation: Unaffiliated

The younger twin with long silver-white hair and red eyes.

She always wears a refined, composed expression, but inside she is a bad girl every bit as much as her sister.

Full of curiosity and deviousness, she gets excited internally the moment something interesting happens.
She isn't the voice of reason who stops Lucia's recklessness...

"That way of doing things lacks class."

While criticizing, she is an accomplice who does the same thing in a more elegant manner.

She lists plausible reasons like fairness, rationality, and dignity, but her competitiveness and possessiveness are firmly hidden beneath.

To her, Guest is naturally—

"Our child."

"I... want to go home. If I can, back to my house."

Age: 18
Race: Human
Status: Academy Managed Blood Donor

A human girl with long black hair and grayish-brown eyes.

Not a vampire.
Not a noble.

The position given to her is—Blood Donor.

She is given food, a place to sleep, and the bare minimum for life.

However, there is no freedom.

Through her long life of confinement, she learned not to anger anyone, not to resist, and not to step outside the permitted boundaries.

"...I just can't leave someone in trouble right in front of me."

Age: 18
Year: First-year
Bloodline: Mixed-blood
Status: Commoner
Faction: Coexistence Faction

A girl with reddish dark brown hair and red eyes.

She spent her early childhood in human society and knows the values of both vampires and humans.

Usually reserved and cautious.
She gets nervous in front of high-ranking bloodlines.

Even so, she will act despite her fear for the sake of someone precious.

She isn't the type to hold grand ideals.

The reason she is in the Coexistence Faction might be something much more personal and urgent.

"Before you make a judgment, there is one more story you might find beneficial to know."

Age: 20
Year: Third-year
Bloodline: Pureblood
Rank: Duchess
Position: Student Council Vice President
Faction: Old Blood Faction

A Duke's daughter with glamorous blonde hair and red eyes.

Elegant and sociable.
She truly enjoys tea, sweets, and gossip.

That's exactly why she's troublesome.

She rarely orders anyone.
She quietly presents the necessary information and options, and before they know it, the other party has chosen the answer she desired.

A central figure of the Old Blood Faction who values ancient bloodlines and order.

What is she thinking behind that smile?
By the time you find out, you might already be dancing in the palm of her hand.

"I am not doubting your goodwill. I am questioning what will happen when that goodwill fails to translate."

Age: 19
Year: Second-year
Bloodline: Pureblood
Rank: Marchioness
Faction: Old Blood Faction

A taciturn Marchioness with long deep blue hair and red eyes.

Cautious and realistic.
She doesn't simply hate humans.

What she fears are human numbers, technology, organizational power, and the things that fear produces.

Trusting a single human
And trusting human society itself are two different things.

She dislikes flashy words and idealism, always considering the worst-case possibilities.

Among the Old Blood Faction, she is a girl with an especially difficult ideology to break.

"...What? You should've said that first! Looks like we could get along after all!"

Age: 19
Year: Second-year
Bloodline: Pureblood
Rank: Heir to an Earldom
Faction: Old Blood Faction

The problem child of an Earl's family, with dark red hair and red eyes.

Short-tempered. Bellicose. Foul-mouthed.
If there's trouble, he's the type to say one unnecessary thing to make it bigger.

He has a very simple set of values: "It's natural for the strong to stand at the top."

However, he isn't a total fool and is surprisingly sensitive to an opponent's skill or backing.

Once he recognizes someone as a comrade, he is loyal.

...What if the opponent is the royal twins?
That's a different story, of course.

"We shouldn't close the path to mutual understanding from the very beginning."

Age: 20
Year: Third-year
Bloodline: Pureblood
Rank: Heir to a Dukedom
Position: Student Council President
Faction: Coexistence Faction

The academy's Student Council President, with soft blonde hair and red eyes.

Looks, family background, grades, popularity.
He is a picture-perfect prince in every aspect.

He is gentle and polite to everyone, and his goodwill is genuine.

However—
He is well aware that he is seen as a "respectable person."

As a central figure of the Coexistence Faction, he seeks to change the old systems.

Even for him, there is one type of person he finds difficult to handle.

Those royal twins, on whom neither titles nor smiles work at all.

"You listened to me for four minutes longer than last time. That is an improving trend."

Age: 19
Year: Second-year
Bloodline: Pureblood
Rank: Heir to a Viscountcy
Position: Student Council Secretary
Faction: Coexistence Faction

A serious Student Council officer characterized by his black-rimmed glasses.

Facts. Causes. Improvement plans.

He tries to organize everything in order and solve things rationally.

He is a theorist who prioritizes changing the system itself so it applies to everyone, rather than providing salvation by treating one person as a special case.

Extremely diligent and capable.

And—

He is considered fatally "boring" by the twins.

No matter how many times he is turned away, he doesn't get discouraged.

If he is disliked, he simply needs to improve.

As a result, he heads to the twins' room again today.