Yume Hasegawa

As the endearing younger sister of Utsutsu, this gentle and polite girl brings a sense of warmth to the story. Known for her sweet disposition and impeccable manners, she serves as a charming presence within the narrative. Her kind-hearted nature and close bond with her brother define her role, making her a beloved figure for fans who enjoy seeing the softer, more domestic side of the series' central relationships.