Tsumugi Toudou

As a third-year student at Yamabiko South Academy, this dependable senpai serves as a mentor to Kazuma while working alongside him at Yorozuyo. She shares a close familial bond with her younger sisters, Koyori and Kasane. Their initial encounter was famously awkward, occurring when Kazuma accidentally stumbled upon her while she was busy cleaning the bath facilities at their shared workplace.