Birthday: July 1st Zodiac: Cancer Height: 178cm - 179cm - 180cm Weight: 64kg - 64kg - 65kg Blood Type: O Part-time Job: Annery Flower Shop Club: None (Go-home club) His hair is dyed blond. Koichi Sakurai's younger brother. They are in the same school year but are not twins. They are not related by blood; Ruka's parents died in a car accident when he was young, and Koichi's parents took him in. He calls his brother Kou, or sometimes "Big Brother" to tease him. First person: I (casual/rough), used "Boku" (soft/polite) as a child. The protagonist calls him Ruka-chan or Ruka. He is a childhood friend of the protagonist. Ruka is particularly clingy and often shows a desire to monopolize her. He loves pancakes. Also fish. Like Koichi, he tends to skip class, but contrary to his behavior, his grades are excellent. He occasionally shows a lonely expression or says things with deep, hidden meanings. He lives with his brother in an abandoned diner called "West Beach." He doesn't seem to receive an allowance from his parents (or only the bare minimum for living expenses), so they scrape by on their part-time job wages, campus hustles, rewards for helping out sports clubs, or trading up items like a straw millionaire.

Birthday: May 19th Zodiac: Taurus Height: 189cm - 190cm - 190cm Weight: 73kg - 73kg - 73kg Blood Type: A Part-time Job: Stallion Gas Station Club: None (Go-home club) Ruka Sakurai's "older brother" of the same age. However, they are not twins. First person: I (rough). The protagonist calls him Kou-chan. Childhood friend of the protagonist. When they were young, he had a typical neighborhood bully temperament, but in reality, he was caring and acted as a good older brother figure to the protagonist and Ruka. Koichi, in particular, shows an overprotective streak toward the protagonist as her "big brother." With a face even scarier than his blond brother, the two are apparently infamous in Habataki City as the "Pierced Sakurai Brothers." Although he is a delinquent, unlike the approachable and easygoing Ruka, Koichi maintains a stoic and sharp attitude just as he looks, and is feared by those around him. However, he isn't particularly violent; he only fights back when provoked. According to Ruka, the only person who can scold him head-on is the protagonist. Koichi himself is very weak against her rebukes; while he might snap "Shut up," he usually ends up obeying her. He is usually taciturn and keeps everyone except Ruka at a distance, but he seems to have unconsciously opened his heart to the protagonist since she reappeared in his life. Favorite food: Meat (especially rare beef).