Eiji Aihara Age: Introduced as a 2nd-year middle schooler, later progresses to high school. Birthday: August 10 (Leo). Blood Type: A. Height: 173cm. Has a rough way of speaking. Devoted Unrequited Love: He has long harbored feelings for his childhood friend, Izumi Shiozaki, but struggles to convey them. A Boy Who Doesn't Know Love: Because Izumi is already dating his best friend, Naohiko Bessho, Eiji suppresses his feelings and suffers through his own awkwardness. Clumsy Youth: The story centers on him discovering "true love" and what it means to care for someone amidst the complex web of friendships and romances with Naohiko and the others. Currently dating Koharu Fujimura.

Naohiko Bessho Reliable and level-headed. Birthday: April 2. Height: 181cm. Blood Type: A. Relationships: Best friends with the protagonist, Eiji Aihara, since middle school. Romantic Status: In a relationship with Izumi Shiozaki.

Izumi Shiozaki Birthday: July 25 (Leo). Blood Type: B. Height: 156cm. Relationships: Childhood friend of the protagonist, Eiji Aihara. Also the girlfriend of Eiji's best friend, Naohiko Bessho. Devoted and honest. The type who can't tell a lie.

Koharu Fujimura Birthday: March 9 (Pisces). Height: 162cm. Blood Type: O. Character Traits: A high school girl "in love with the idea of love." View on Romance: A passionate personality who tries to steal Naohiko away the moment she realizes he has a girlfriend (Izumi). She has a side of being a "romance stray" who ends up doing too much for men in her search for love. Eiji Aihara's girlfriend.

Taichi Senami Affiliation/Club: Member of the high school light music club (Guitar & Vocals). Personality: Bright, energetic, and a mood-maker. Height: 177cm. Birthday: August 1 (Leo). Blood Type: A. One of Eiji Aihara's group of friends. While he is a mood-maker who always brightens the room, he is depicted as a charming character who shows a clumsy side regarding his own romance and a kind, caring side toward his friends. A bit of a flirt. Dating Mizuho Ikezawa.

Mizuho Ikezawa Birthday: September 17 (Virgo). Height: 164cm. Blood Type: AB. Class: 1st/2nd year high school (same class as Eiji and Naohiko). Committee: Library Committee (alongside Eiji Aihara). Meticulous and reliable. She has a strong personality and speaks her mind clearly, but she often feels bewildered by romance, and her blushing face in unexpected moments is charming. Taichi Senami's girlfriend.