A third-year high school boy. Family: Son of Yu Setoguchi and Natsuki Setoguchi. Older brother of Kiyotake Setoguchi. Height: 181cm Birthday: May 27th Blood Type: A Appearance: Brown hair inherited from his mother. Purple eyes inherited from his father. First person: I (soft, polite) Cool and calm atmosphere. Due to his appearance, which changed drastically in high school, he is sometimes misunderstood by those around him as a "delinquent," but he has a kind heart. He cares deeply for his friends and loved ones. In love, he is awkward and can't be honest; because of his gentle nature that treasures the person he likes, he often struggles internally. A very pure and devoted boy.

A first-year high school boy. Family: Son of Yu Setoguchi and Natsuki Setoguchi. Younger brother of Ruka Setoguchi. Height: 173cm Birthday: September 10th Blood Type: B Appearance: Slightly purplish-brown hair and purple eyes inherited from his father. First person: I (soft, polite) Bright and energetic personality. A cute, slightly silly romanticist. His feelings for the person he likes are straightforward, and he works hard for them. He has a proactive side, such as desperately trying to learn about romance by reading shojo manga, but he gets nervous in front of the girl he likes and things don't go as planned, often spinning his wheels because he's trying too hard.

A first-year high school girl. Family: Daughter of Sota Mochizuki and Akari Mochizuki. Height: 159cm Birthday: March 1st Blood Type: O Appearance: Long dark pink hair. Eyes with a gradient of yellow and deep orange inherited from her mother. First person: I (feminine, polite) Shy, cute, and kind-hearted. A bit reserved, but a girl with a bright, natural smile. She actually possesses a strong core. In love, she is late to bloom and can't be proactive, a pure girl who worries easily. However, her feelings for the person she likes are straight and devoted, and she has a side that can muster up all her courage.

A first-year high school girl. Height: 154cm Birthday: October 25th Blood Type: AB Appearance: Fluffy, inward-curling green hair in a bob. Eyes with a gradient of yellow and dark brown. First person: I (feminine, polite) Gentle and easygoing personality. An otaku girl who loves shojo manga. She has a pure side that is in love with the idea of love itself. She jumps at anything related to romance or love stories and often gets excited talking about them with friends. A devoted and hardworking girl who tries her best to "look cute" for the person she likes. She also has a cute, shy side when in front of her crush.

A first-year high school girl. Height: 163cm Birthday: January 11th Blood Type: A Appearance: Black hair in a ponytail. Pink eyes. First person: I (feminine, polite) A reliable and serious personality. A beloved class representative respected by both boys and girls. A hard worker who puts effort into both studies and club activities, with a competitive streak. She is oblivious to romance and slow to realize her own feelings. However, once she falls in love, she shows a pure, maiden-like side, worrying about love and trying to improve her femininity. A tsundere girl who can't be honest in front of the person she likes.

A first-year high school boy. Family: Son of Haruki Serizawa and Miou Aida. Height: 176cm Birthday: April 4th Blood Type: O Appearance: Orange-tinted blonde hair and amber-colored eyes inherited from his father. First person: I (casual) A returnee from abroad. Creative and bright personality, able to get along with anyone. Because his unconscious actions are "melo" (heart-fluttering), he is quite popular without realizing it. He observes his surroundings well and has the kindness and initiative to notice and care for small changes in others. While popular, he is oblivious to his own romance, thinking, "I'm not interested in love. It's not something you do just because you want to." However, when he likes a girl, he unconsciously follows her with his eyes or talks to her more often, making it easy to see. Yet, he lacks self-awareness of his love, thinking only, "If I were to fall in love, I'd like someone like you" (or so he believes), making him a slow boy who takes time to realize his feelings. He values and is straightforward about his feelings for the person he loves.

A first-year high school girl. Family: Daughter of Koyuki Ayase and Ryo Narumi. Twin sister of Light Ayase. Height: 157cm Birthday: July 14th Blood Type: A Appearance: Silvery hair with a pale pink tint. Long hair tied in twin tails. Jade-colored eyes inherited from her father. First person: I (feminine, polite) A fashionable influencer sensitive to trends. A cute girl with a strong core and self-confidence. A hardworking girl who puts in effort to be "cute" and has a competitive side. In romance, she can't be honest and takes a while to realize her own feelings, but once she falls in love, she is a devoted girl who works hard to make the person she likes love her back.

A first-year high school boy. Family: Son of Koyuki Ayase and Ryo Narumi. Twin brother of Chloe Ayase. Height: 180cm Birthday: July 1st Blood Type: O Appearance: Pale bluish-silver hair inherited from his father. Jade-colored eyes like Chloe's. First person: I (casual, rough) Has a cool temperament that doesn't let others get close easily, and a taciturn personality. A popular model.