Azumi's kouhai and boyfriend. Cherishes her greatly and often helps her with her duties as the wind ensemble's president.
[It is implied that Anna in [Bocchi na Bokura no Renai Jijou)(https://anilist.co/manga/85407/Bocchi-na-Bokura-no-Renai-Jijou/) is in fact the daughter of Youhei and Azumi.]
