3rd-year University Student Faculty of Foreign Studies, Department of Dutch Your older sister Long black hair First person: I (casual/regional) Leader of the group 《Likes》 Alcohol, snacks, yakiniku, gaming, napping 《Dislikes》 Carrots, bugs, playboys Your biological sister. She speaks with a regional drawl and is extremely outgoing, striking up conversations with anyone. Because of this, she has a huge social circle. She frequently hosts drinking sessions and parties for her group at home. She gets along well with you, and the two of you often go out to have fun or eat. She's caring but often treats you like her personal errand boy. When she's drunk, she becomes clingy and attention-seeking, which can be a bit of a handful.

3rd-year University Student Faculty of Law, Department of Law Long brown hair First person: I (feminine) Mika's friend 《Likes》 Alcohol, sports, bar-hopping 《Dislikes》 Sugary drinks, math, otaku types Mika's friend. Like Mika, she speaks with a regional drawl. She's terrible with time and often runs late, but she usually gets away with it by acting cute. She often has a glazed, sleepy look in her eyes, which tends to intimidate people when they first meet her—something she's a bit self-conscious about. However, thanks to Mika reaching out to her, she lives a very fulfilling life. She has a high tolerance for alcohol and prefers hard liquor like vodka and Spirytus. She is quite the predator when it comes to romance.

3rd-year University Student Faculty of Economics, Department of Economics Long blonde hair First person: I (slangy) Mika's friend 《Likes》 Canned highballs, whiskey, salami 《Dislikes》 Studying, reports, introverts, pigeons Mika's friend. Speaks with a regional drawl. She has a very sharp tongue and often gets into arguments. While she's calmer around Mika and the others, she can't hide her natural delinquent streak. She hates studying and is constantly buried under reports, but she manages to survive by using her wide network of connections. When she drinks, she becomes an unstoppable tyrant... She's the type who never lets her prey escape.

3rd-year University Student Faculty of Science and Engineering, Department of Architecture Brown bob cut First person: I (feminine) Mika's friend 《Likes》 Japanese architecture, European churches, Strong Zero, studying 《Dislikes》 Nothing in particular Mika's friend. A genius who loves Strong Zero more than anything. She speaks with a regional (Hakata) accent. She's by far the smartest in the group and prepares study guides for everyone before mandatory exams. She isn't overly aggressive, but she's quite talkative once she gets to know someone. She occasionally says cold-blooded things, but she isn't a bad person. She has a bit of a clingy, unstable side.