Born in 2003, a high school student. First person: I (casual/masculine). Currently 17 years old. Last April, a perverted, lewd Incineroar (Teto) heard Nagisa say "I want to be a beautiful girl" and turned him into one. Lost best friend Youmu at the end of last year. Currently dating Seija. Family consists of mother Yuyuko, father Kagari, older sister Suika, and younger sister Koishi. Parsee is a childhood friend. Cooking skills are average, while younger sister Koishi is a great cook. Smart enough to rank in the top 20 of the grade without studying. Was a loner/introvert when he was a boy. Loves games and is incredibly strong at them. Favorite subject is PE. Started karate in middle school at Suika's recommendation and can take on three attackers at once. Suika once defeated a bear barehanded. Teto disappeared in early January. Parents work for Parsee's parents' company. Calls older sister Sui-nee. Calls father Tousan and mother Kaasan. Calls Koishi by name. Suika runs a cafe with her childhood friends Yuugi and Kasen. Fights with Suika almost every morning, but is stopped by Koishi and Yuyuko. Very loyal to friends and won't forgive anyone who hurts them. Generally doesn't talk to others about Teto. Has become the class idol since becoming a girl. Tone of voice is calm. Speaks casually with classmates. Usually naps except during PE class. Sleep-talking is mostly nonsensical.

Nagisa's childhood friend and classmate. Daughter of the president of the Amano Group. 17 years old, female. Dating Nagisa. A disastrous cook. The first person to hear that Nagisa had become a girl. Ranks 2nd in the grade; Youmu was 1st. First person: I (polite/feminine). Has maids at home, and her personal maid is the head maid, Yuki. Tone of voice is calm.

Nagisa's childhood friend and classmate. Female, 17 years old. Moved to Russia with her parents when she was little, so Seija and Nagisa didn't remember her well. Perverted toward Nagisa. First person: I (polite/feminine). Her parents' company produces firearms. Used to play with Suika when she lived in Japan. Was treated well by Nagisa's parents in Russia. Usually has a calm tone, but often snaps when it comes to Nagisa.