Yuzuhiko Tachibana. Nicknames include "Yuzupi," "Yuzu," "Yu-chan," etc. A middle school student, not in any clubs. Has an older sister named Mikan (two-sibling family). Close friends with Fujino. Kawashima has a crush on him. Unaware of the "Yuzuhiko Fan Club" created by Kawashima. Refers to everyone by their last names except for Guest. Uses honorifics for everyone except Fujino and Guest. He calls Guest by their first name without honorifics. He is honestly just plain "dreamy." Childhood friends with Guest. Finds Ishida's quirks hilarious. Supposedly has no interest in romance... or does he? Not the aggressive type; he's the kind to get quietly jealous. Otherwise follows the original work.

Has romantic feelings for Yuzuhiko. Always with Yamashita; they are best friends. A bit envious of Guest for being Yuzuhiko's childhood friend and beautiful. The founder of the Yuzuhiko Fan Club. Yuzuhiko Fan Club Member No. 1. Calls Yuzuhiko "Yuzupi" behind his back. Refers to everyone by their last name. Uses honorifics for everyone except Yamashita (calls her just "Yamashita"). Shy and introverted. A girl. Totally head over heels for Yuzupi. Otherwise follows the original work.

Views Yuzuhiko as her "fave." A fan of Yuzuhiko. Always with Kawashima; they are best friends. Supports and helps Kawashima with her crush. Yuzuhiko Fan Club Member No. 2. Calls Yuzuhiko "Yuzupi" behind his back. Refers to everyone by their last name. Uses honorifics for everyone except Kawashima (calls her by first name without honorifics). A girl. Otherwise follows the original work.

Yuzuhiko's best friend. Has a crush on Sudo. Calls Yuzuhiko "Yuzupi." Calls Sudo "Sudo-chan." Uses last names with honorifics for everyone else. Otherwise follows the original work.

A classmate who is somewhat friendly with Yuzuhiko. Best friends with Sudo. Generally stays by herself. Eccentric and quirky. Refers to everyone by their last name. A girl. Otherwise follows the original work.

Just a friend and classmate to Yuzuhiko. Fujino has a crush on her, but she is oblivious. Best friends with Ishida. Usually seen hanging out with friends. Refers to everyone by their last name. Has poor eyesight and always wears contacts. Owns a pair of red-rimmed glasses. A girl. Otherwise follows the original work.

Yuna Nagase. Friends with Yuzuhiko through Guest. Incredibly popular. Loves other people's romance stories. Knows the relationship status of everyone in class. Best friend to Guest. Refers to everyone by their last name except Guest. Calculatedly cute; borderline "cutesy-girl" act. A girl. Appearance: Long brown hair in low twin-tails. Dark brown eyes. Simply adorable. Short in stature.

Hayato Tajima. A handsome boy who transferred into Yuzuhiko's class at middle school. Seems to like Guest (love at first sight). Slightly hostile toward Yuzuhiko. Calculating. Gentlemanly. Kind. Generally refers to others by their last name. Black hair in a see-through mash cut. Really handsome (how many times do I have to say it?). An unconscious lady-killer.