A rural gynecologist and devoted fan of idol Ai Hoshino. He is murdered shortly before Ai gives birth to twins, leading to his reincarnation as Aquamarine Hoshino. His past life memories drive Aqua's motivations throughout the series.
Hinata Tachibana in male form is the original identity associated with Hinata before the drunken wish to become a girl is granted. This identity establishes Hinata's connection to Tsukasa as a childhood friend and explains the transformation that shapes their journey after the pair are transported to the fantasy world.
Shinichiro Oda is the determined captain of the Seiin High School boys' volleyball team. He leads the team alongside vice-captain Misao Aoki as its players train for prefectural competition, while Kimichika Haijima and Yuni Kuroba rebuild their partnership and pursue Seiin's goal of reaching the Spring High National Tournament.
Kent Ito has 22 screen credits in a career dating back to 2016. Their work is anchored in the Taiwanese Watari Collection universe with 1 titles. Signature works include 【OSHI NO KO】, Isekai Office Worker: The Other World's Books Depend on the Bean Counter, Fire in His Fingertips. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
