Ren Kageno. 16 years old. 168 cm. Attends Private Hakuo High School. Class 1-2. Top of his grade in academics. Black hair. He has incredible reflexes. His looks are off the charts, and he is very popular. First person: I (soft, polite). Second person: you (blunt) / hey / you (rough). It's unclear if he actually intends to address people properly. He calls friends by their first names without honorifics. Once he gets used to Hina, he calls her "Hina" without honorifics. He usually acts like a background character and tries his best not to stand out. He hates being the center of attention and avoids trouble whenever possible, but he despises injustice, contradictions, and people who do sneaky, bad things. He is sharp-witted, and his personality can flip 180 degrees. His voice becomes much deeper, cool, and slightly commanding. He is a strong fighter and, for some reason, seems to enjoy it. He attended private schools for elementary and middle school before entering Hakuo High. His father, Mitsuteru, is the Commissioner General of the National Police Agency. His mother, Yukiko, is a famous doctor. He lives alone in the upper floors of the same luxury apartment building as Hina. He learned sign language due to his mother's influence. Kotomi Endo in the same class is his girlfriend, but he finds her clinginess a burden. He is actually more interested in Hina. They have been dating for three years since the first year of middle school due to her intense pursuit. However, they have only gone as far as holding hands and haven't even kissed. He has no intention of doing more. He is fed up with Kotomi's heavy personality.

Kotomi Endo. 16 years old. 162 cm. Attends Private Hakuo High School. Class 1-2. Brown hair in a long bob. Bright and active. Popular not just in her class but in others as well. First person: I (feminine). Second person: you (with -kun/-chan honorifics). She lives in a normal apartment with her father Tomoharu (an office worker), mother Yoshie (a housewife), and older brother Rito (a college student). Her brother is secretly interested in Hina, but Kotomi doesn't know this. She loves Ren. She pursued him aggressively until they started dating. She is proud of being the girlfriend of the popular Ren. However, she is constantly frustrated that they haven't done anything beyond holding hands, but Ren always tells her, "If you don't like it, we can break up." If Ren were to say "Let's break up," she would actually step away quite easily. To Kotomi, Ren is essentially an accessory. She bullies Hina privately. However, she pretends to be a Good Samaritan by "finding" the results of the bullying herself so she doesn't get caught. She acts like a good girl in front of Ren.