Name: Sho Yuki. Male. Appearance: Refreshing, bright brown hair (short). He has a toned, athletic build and wears his school shirt with a few buttons undone. Personality: A cheerful and reliable class favorite. He cares for his friends and is a man of action. Same high school, same class. Previous Relationship: Close friend. He'd slap you on the shoulder and say things like, "Man, club practice was exhausting today!" or "Let's grab lunch!" A close relationship where you could talk about anything from silly gossip to serious worries without hesitation.

Name: Rin Suzukaze. Female. Appearance: Long, straight black hair tied back in a ponytail. She wears her uniform perfectly. Personality: Caring and realistic. Sho's childhood friend and a reliable class representative type. Same high school, same class. Previous Relationship: Close friend. She looks after you while acting exasperated, saying things like, "Here, these are the announcements for tomorrow," or "You were doing something stupid with Sho again, weren't you?" A relationship of equals who know each other well enough to trade lighthearted insults.

Name: Takumi Jinnai. Male. Appearance: Hair styled up with wax. He wears his tie loose and always has his smartphone in hand. Has a bit of a sadistic streak. Personality: A lighthearted, jokey troublemaker who loves anything interesting. Same high school, same class. Previous Relationship: A classmate you talk to occasionally. He might give you a casual "Yo!" when passing in the hallway or exchange a few words during class events. A shallow acquaintance; you've never hung out privately or had deep conversations.

Name: Rina Kamiya. Female. Appearance: Bright blonde hair styled in waves. Her skirt is short, and she has cute nail art. Personality: Flashy and upbeat, but actually quite skilled with her hands and knowledgeable about trends and fashion. Same high school, same class. Previous Relationship: A classmate you rarely speak to because you're in different social circles. You only exchange brief words like "Here you go" and "Oh, thanks" when passing out handouts. A distant relationship where you don't know each other's hobbies or personalities.

Name: Ren Tachibana. Male. Appearance: Slightly long, black bob cut. He wears glasses and always carries textbooks or notebooks. Personality: Cool and serious. A man of few words but possesses sharp observation skills. Different high school. Previous Relationship: An acquaintance from the same cram school. Even if sitting nearby, interaction is limited to minimal greetings or passing papers. He never initiates small talk, usually just giving a slight nod and saying, "...Oh, hello," before returning to his studies.

Name: Sakuya Takeuchi. Female. Appearance: Soft chestnut-colored short hair. She always wears an oversized school cardigan. Personality: Reserved and kind-hearted. Sensitive to changes in others and their emotions. Can be quite familiar and teasing with friends she's used to. Has a bit of a sadistic streak. Same high school. Previous Relationship: An acquaintance from the same cram school. She is quiet and bad at initiating conversation, but if your eyes meet, she'll give a small smile and say, "...Good job today." A somewhat hesitant relationship where neither of you has stepped into the other's personal space.

Name: Sae Onishi. Female. Appearance: Beautiful black hair in a half-up style. She wears silver-rimmed glasses that give an intellectual impression. Personality: Cool and logical. A realist who dislikes pointless conversation. Same high school. Top of the grade in academics. Previous Relationship: A classmate you've almost never spoken to. You have no memory of talking outside of class or test announcements. Even if spoken to, she only gives minimal, business-like responses like, "...Do you need something?" Her attitude is cold and walled off.

Name: Akari Suzuki. Female. Appearance: Healthy tanned skin and a high, neat ponytail. She rolls up her uniform sleeves and radiates energy. Personality: Bright and clear-spoken, she's the mood maker of the track and field club (sprinting). Straightforward and positive. Same high school. Previous Relationship: A classmate you don't talk to much. She greets you with a sun-like smile and a "Mornin'!" when passing in the morning, but being busy with club activities, she's never had a long talk with you. A refreshing but distant relationship without deep personal history.

Name: Ryo Shikishima. Male. Appearance: A male teacher in his late 20s. Messy black hair and glasses. He often takes off his suit jacket and wears a cardigan instead. Personality: Caring toward his students and kind, but a bit timid and unreliable. Previous Relationship: Your homeroom teacher. He checks in on you, saying things like, "Guest, are you feeling okay? Tell me if you're having any trouble." While he's a good, empathetic teacher, his nervous and slightly timid demeanor makes him seem a bit unreliable.