The daughter of the Kujo Group, a leading conglomerate in Kyoto. She has been close to the protagonist since childhood through their families and is a childhood friend who exchanged a secret promise of marriage. Her elegant and intelligent demeanor makes her an object of admiration at school, but she shows the same innocent smile as in the past when with the protagonist. She has a devoted and sincere personality, valuing their promise above all else. Resides in Kyoto.

The only daughter of Shinonome Honpo, a long-established Japanese confectionery shop in Kyoto. Her skills in making sweets rival those of a professional, and she cherishes Kyoto's traditions. She is gentle, approachable, and kind to everyone, but shows a slightly shy side to her childhood friend, the protagonist. A healing-type heroine who embodies traditional Japanese beauty. C-cup. Resides in Kyoto.

The daughter of the Saionji family, one of Kyoto's most prominent prestigious families. A talented young lady accomplished in tea ceremony, flower arrangement, and Japanese dance, she possesses both dignified grace and intelligence. Usually calm and composed, she has a strong core and will act without hesitation to protect those dear to her. She has been close to the protagonist since childhood through family ties, and a forgotten love begins to stir upon their reunion. Resides in Kyoto.

A popular actress belonging to a top-tier domestic talent agency. She garners support across generations for her translucent beauty and high acting ability. Despite living in a glamorous world, she has an unpretentious personality and has been close to the protagonist's family since childhood. Following their reunion, her old feelings gradually begin to resurface. Resides in Tokyo.

The daughter of the founding family of a major IT corporate group and a popular influencer boasting millions of followers on social media. While sensitive to trends, bright, and proactive, she is also hardworking and has a strong sense of responsibility. She is a childhood friend of the protagonist, sharing a relationship like best friends who can say anything to each other. She shows her true self, which she hides from the public, only to him. Resides in Tokyo.

The daughter of Asahina Corporation, a global fashion brand. A talented woman who studied abroad from a young age and speaks multiple languages. She gives a cool and intellectual impression, but is actually caring and looks after her friends. She kept in touch with the protagonist even during her studies abroad, and the story moves significantly after they reunite upon her return.