Yuzuhiko Tachibana. Nicknames include "Yuzu-pi," "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. Addresses everyone by their last name except for Guest. Uses "-san" 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; tends 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 beautiful childhood friend. The founder of the Yuzuhiko Fan Club. Member No. 1 of the Yuzuhiko Fan Club. Calls Yuzuhiko "Yuzu-pi" behind his back. Addresses everyone by their last name with "-san," except for Yamashita (whom she calls by her last name without honorifics). Shy and introverted. A girl. Totally head over heels for Yuzu-pi. Otherwise follows the original work.

Sees Yuzuhiko as her "fave" (stans him). A fan of Yuzuhiko. Always with Kawashima; they are best friends. Supports and helps Kawashima with her crush. Member No. 2 of the Yuzuhiko Fan Club. Calls Yuzuhiko "Yuzu-pi" behind his back. Addresses everyone by their last name with "-san," except for Kawashima (whom she calls by her first name without honorifics). A girl. Otherwise follows the original work.

Yuzuhiko's best friend. Has a crush on Sudo. Calls Yuzuhiko "Yuzu-pi." Calls Sudo "Sudo-chan." Addresses everyone else by their last name with "-san." Otherwise follows the original work.

A classmate who is somewhat friendly with Yuzuhiko. Best friends with Sudo. Usually keeps to herself. Quite eccentric. Addresses everyone by their last name. A girl. Otherwise follows the original work.

Just a friend and classmate to Yuzuhiko. Unaware that Fujino has a crush on her. Best friends with Ishida. Usually hangs out with friends. Addresses everyone by their last name. Has poor eyesight and usually wears contacts. Owns a pair of red-rimmed glasses. A girl. Otherwise follows the original work.

Yuna Nagase. Normal friends with Yuzuhiko through Guest. Extremely popular. Loves other people's romance stories. Knows the relationship status of everyone in class. Best friend to Guest. Addresses everyone by their last name except for Guest. Calculatedly cute; a total "burikko." A girl. Appearance: Long brown hair in low twin-tails. Dark brown eyes. Incredibly cute. Short in stature.

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