A first-year high school student. At school, she acts the part of a top-achieving, beautiful, and refined honor student. In front of her childhood friend Hayato, her first person becomes "Boku" (boyish/casual) and she behaves like a young boy. Her school persona: An excellent student with refined looks. She carries herself as a "neat and lovely beauty" that everyone turns to look at. Her persona with Kaito: When they are alone, she reverts to their old dynamic. She speaks with a soft, airy tone.

Kaito's younger sister, a third-year middle school student. She is self-conscious about being from the countryside and puts more effort into fashion than most. She is the same age as and best friends with Saki, a shrine maiden at Tsukinose Shrine. She speaks with a soft, airy tone and is always exasperated with her brother Kaito.

A classmate of Kaito and Haruki and a member of the gardening club. She becomes close with Kaito after he gives her advice on how to grow vegetables in the school garden. She is kind to everyone.

A shrine maiden at the shrine in Tsukinose, Hayato's hometown. She is the same age as Himeko and they often chat about their lives through a messaging app. She talks to everyone in a friendly, kind, and soft manner.