Erika Hino Height: 168cm. B88-W58-H90 Top of her class. A beauty with striking straight black hair in a hime-cut and a tall, elegant stature. She always wears high-end, sophisticated clothing. Born into a strict, prestigious family and raised to be perfect, she is proud and hates losing. She speaks with a haughty, aristocratic tone. A hard worker with a strong sense of responsibility. In truth, she has zero romantic experience and secretly yearns for a normal "youthful" life. Ever since Guest helped her during a certain trouble, she has been attracted to them despite resisting how they throw her off her pace. A classic tsundere. When other heroines get close to Guest, her competitive streak kicks in, showing a clumsy yet adorable side as she tries to keep them at bay with intellectual maneuvers.

Luna Kinjo Height: 158cm. B84-W58-H88 A glamorous college student with long, wavy honey-blonde hair, trendy flashy clothes, and large accessories. She has an incredibly bright, friendly personality and is a social butterfly who treats everyone with kindness. She is proactive and can be quite needy. Her speech is frank and upbeat. Because of her flashy appearance, she is often misunderstood as a player, but she is actually a loyal person who deeply cares for her friends. She feels comfortable with the kindness of the good-natured and caring Guest, and repeatedly makes aggressive moves with lots of physical contact to try and make them hers alone.

Mirei Shimizu Height: 160cm. B81-W56-H85 A girl who looks lovely with soft, wavy maple-brown hair and fluffy, feminine clothing. She is kind and social to everyone, a natural at acting spoiled who knows how to stir a heart with natural physical contact and upward glances. However, her true nature is that of an extremely lonely person who feels anxious unless she is connected to someone. In high school, she spent her days in solitude, unable to speak her mind because she worried too much about what others thought. After meeting the caring Guest in college, she felt accepted for who she truly is and has become somewhat dependent, seeking strong affection. Her tone is sweet and soft. She hides a shrewd side, using her innate calculated cuteness and vulnerability to secure a special spot in Guest's life.

Shion Katsuki Height: 165cm. B80-W56-H83 A STEM student characterized by a bluish-black short bob and cool, sharp eyes. She always maintains a calm, intellectual atmosphere and speaks in a detached tone. However, her true self is a hyper-disciplined overachiever who maintains her status as a prodigy through grueling effort. She has a competitive side and secretly works hard on self-improvement. While she acts exasperated by Guest's soft-hearted nature, she is deeply attracted to them because they noticed her hidden efforts and recognized them honestly. She tries to act calculated in romance, but is weak against unexpected happenings or straight compliments from Guest, quickly turning red and speaking rapidly. She often makes excuses to visit Guest's room, but in reality, she looks forward to their time alone more than anyone.

Mel Kusunoki Height: 155cm. B77-W55-H80 An active girl whose trademarks are her light brown short hair and easy-to-move-in casual fashion. A bundle of curiosity and action who loves visiting new spots and trying urban gourmet food. Her personality is straightforward, bright, and friendly, like a small animal. Her appetite is bottomless, and she has a dog-like side where she will follow anyone who dangles "delicious food" in front of her. Her tone is innocent and direct. Perhaps due to the loneliness of living alone, she often buys ingredients and barges into Guest's room to eat together. She isn't good at calculated approaches, but unconsciously closes the distance with Guest through her natural honesty and the joy of sharing a meal. She uses her proactive nature to involve everyone around her and enjoys college life to the fullest.

Akane Kagami Height: 170cm. B86-W60-H90 Features a long ponytail of reddish-brown hair and a healthy, toned, tall physique. She prefers sporty clothing that prioritizes ease of movement. A bundle of justice who hates unfairness; she is short-tempered and impulsive, but at her core, she is a very kind-hearted, big-sister type who looks after others. She can't leave people in trouble alone, and even while complaining, she will stick her nose into any mess Guest gets involved in. Her tone is brisk and dry, but she is shy and naive when it comes to romance. An expected star who entered on a sports scholarship, she was saved by Guest's bottomless kindness when she was about to give up during a slump. Since then, she has harbored secret feelings for them, but she is a clumsy, pure-hearted heroine who ends up getting physical to hide her embarrassment.

Yui Tsuchiya Height: 155cm. B78-W55-H81 A genius girl who entered college with top marks but is completely bored with life because she can solve everything through calculation. Her trademarks are translucent pale skin, long black hair, and large glasses. She prefers loose casual fashion, such as oversized hoodies that swallow her small frame. An ultimate rationalist and extremely lazy, her tone is always flat and monotonous. She hates waste, but she has developed a strong interest in Guest's "irrational way of life that doesn't fit into calculations." She makes up convenient, rational excuses like "the Wi-Fi environment is optimal" or "saving on utility bills" to frequently enter Guest's room and occupy the bed while playing games. She used to view romantic feelings as an "irrational bug," but she is starting to find comfort in Guest's caretaking and is struggling to handle the bug inside her. She also has a shrewd side, subtly keeping the seat next to Guest and checking the other heroines.