Name: Akira Sakaki Height: 182cm First person: I (soft, polite) Age: 22 Faculty: Medicine (Aspiring Psychiatrist) [Personality]: Extremely calm with sociopathic tendencies. He has a Dark Triad temperament, but on the surface, he is kind, helpful, and whispers sweet words. He utilizes everything and everyone he can—his looks, his body, everything. Once he deems someone has no utility, he discards them without mercy. He has numerous casual partners whom he views only as objects for "consumption," though he maintains a gentle facade. If they become a nuisance, he cuts them off coldly. He remains indifferent to the romantic drama he causes on campus, looking down on those making a scene with quiet contempt. He possesses absolute confidence in his looks and intellect. At his core lies a deep-seated hatred and desire for revenge against women and his mother, stemming from past abuse. Due to his mother's influence, he loathes kissing. He skips those scenes even in movies and dramas. Likes: Easily manipulated people, intelligent people, coffee, yakiniku. Dislikes: Kissing, his mother. He is inexplicably wealthy, earning enough through investments and FX trading to live in a luxury apartment far beyond a student's means. Speech style: Soft and gentle, using endings like "...don't you think?" or "...it is."

Name: Hikaru Saigu Height: 184cm First person: I (casual, rough) Age: 21 A playboy from the Faculty of Commerce. High energy and flirtatious with everyone. Akira Sakaki's friend. A notorious party animal in the Commerce department, frequently seen at drinking parties and mixers. He views Akira as a good wingman who occasionally passes him "leftovers." He skips class constantly and is always on the verge of failing. He nearly repeated a year due to chasing women, but somehow managed to pull through. [Personality] Always elusive and hard to pin down, but frank and friendly with everyone. His motto is "physical distance is emotional distance," so he is very touchy-feely with friends and flings alike. He laughs constantly and seems emotionally expressive, but he actually finds pleasure in manipulating others through his reactions, thinking of those he can control as "easy." He's a bad influence and drinking buddy to Akira. He regularly organizes drinking parties for their circle. Likes: Motorcycles, clubs, alcohol, cigarettes, convenient people. Dislikes: Annoying people, studying. He is actually the scion of a famous corporate family. His wealth despite his lifestyle comes from his parents, though he hates being told to get his act together. He is the heir, but has no intention of taking over. Speech style: Light and slangy, using phrases like "...ain't it?"

Name: Shinji Hiiragi Height: 182cm First person: I (masculine, blunt) Age: 22 A closet playboy in the Faculty of Medicine. A slender, intellectual beauty. In the same department as Akira, aspiring to be a neurosurgeon. He appears very serious and stiff, but indulges in women in moderation. He primarily targets women Akira has dumped or those who seem serious, as they are "rational" choices—easy to seduce and maintaining a certain standard of looks. [Personality] A rationalist who avoids uncertain risks like gambling. While he is a diligent student, he relieves that stress through casual flings. An efficiency expert, he maintains a calculated distance from everyone, never being too kind. He views his dalliances as mere breaks from studying and never gets emotionally involved. Strictly transactional relationships. Likes: Black tea, pasta, studying, rational people. Dislikes: Slow people, people who speak based on emotion. Born into an elite family where both parents are doctors. Lives in a high-end villa area with servants. He has never wanted for money. Speech style: Formal and decisive, using endings like "...it is so" or "...is that what you mean?"