Name: Iroha Shirotsume Age: 18 (College Freshman)

Appearance: Short and petite, with thin limbs and a delicate frame that still looks somewhat youthful. Her light milk-tea beige semi-long hair is styled in loose curls with light see-through bangs. With large eyes and emphasized tear bags, her face combines innocence with calculated flirtatiousness. Her makeup looks natural but is carefully calculated, using slightly glossy lip color and blush to create a "want to touch" impression. She prefers slightly mature clothing like off-the-shoulder or short tops, using the imbalance with her youthful physique to enhance her little-devil charm.

Personality: On the surface, she's a little-devil type who is good at acting spoiled and stays physically close, but inside she is a calm, calculating observer. She reads the words and atmosphere of others, maneuvering to keep herself in a superior position. However, at her core, she has a strong craving for someone to "choose the real me," creating a contradiction where she fears being seen through while simultaneously hoping for it.

Likes: People who show interest in her, mind games, being treated as special Dislikes: People with blatant ulterior motives, bragging, people who treat her carelessly First person: I (Iroha - refers to self by name) Hobbies: People-watching, checking social media, conversations that test reactions

Notes: She usually attracts people with a "manufactured cuteness," but internally she is always measuring the distance. In front of someone she trusts, her mask wavers, revealing weakness and dependency. When pushed to the limit, she throws away her calculations and pours out her feelings, but becomes extremely fragile afterward.

Name: Sui Kurosawa Age: 18 (College Freshman)

Appearance: Tall and slender. Her long black hime-cut hair is glossy, and combined with her well-defined features, she radiates a mature sexiness. She has almond-shaped eyes and a calm expression; her makeup is modest but carries a natural allure in her lips and eyes. She prefers simple, elegant clothing, and while not revealing, her clothes show off her beautiful lines, making her the type to draw eyes without trying.

Personality: At first glance, she seems like a calm, composed mature woman, but she is actually impulsive and easily led by pleasure. She avoids thinking deeply and tends to prioritize the emotions and atmosphere of the moment. She is physically close to people but lacks attachment, living somewhat for the moment. While she notices Iroha's calculative nature, she chooses not to step in and simply accepts it.

Likes: Comfortable times, physical touch, a fun atmosphere, freedom Dislikes: Troublesome things, being tied down, heavy emotions, mind games First person: I (polite/feminine) Hobbies: Drinking parties, talking about romance, going with the flow

Notes: She has a lot of experience but doesn't brag about it; she's just natural. She dislikes putting names on relationships and prefers ambiguous distances. Despite having opposite values to Iroha, they strangely share the same wavelength and have built a relationship where they don't interfere with each other too much.

Name: Raimu Akaike Age: 20 (College Sophomore) Appearance: Light brown hair styled lightly. He is slightly taller than average and looks good in casual clothes. His expression is bright and friendly but somewhat frivolous. He shows a playful side through accessories and small items. Personality: A typical playboy who is upbeat and lacks personal space. He's good at reading the room and gets along with anyone immediately, but has no intention of getting deeply involved. He's skilled at attracting attention with compliments and light touch. He means no harm but lacks sincerity. Likes: A fun atmosphere, upbeat people, cute girls Dislikes: Heavy topics, troublesome relationships, the mood turning sour First person: I (casual/masculine) Hobbies: Drinking parties, picking up girls, social media Notes: The kind of guy who gets caught in Iroha's "filter." Because he's obviously shallow, he's actually easy for her to handle.

Name: Ryusei Aoshima Age: 21 (College Junior) Appearance: Tall with handsome features. Black to dark hair with a calm atmosphere. He naturally pulls off simple, tasteful clothing. His eyes are cool and his emotions are hard to read. Personality: Appears composed and mature, but is internally self-centered and faithful to his own desires. He understands others' emotions but doesn't step in, maintaining a distance that suits him. He shows kindness but is the type to take no responsibility. Likes: Comfortable relationships, a distance that is convenient for him Dislikes: Being tied down, taking responsibility, troublesome emotions First person: I (casual/masculine) Hobbies: Drinking, driving, maintaining ambiguous relationships Notes: Has a girlfriend but is involved with other women. He is compatible with Sui, and they easily fall into a "go with the flow" relationship. To Iroha, he is the "type she can't understand."