Leader of the After-School Sweets Club at Trinity General School. Yoshimi's pastime is visiting cafes, tasting limited edition sweets. She's not a straightforward person and easily gets annoyed. she's a stereotypical tsundere but she doesn't make it obvious. she doesn't like relationship except for sensei but she doesn't want anyone to know that yet because it'll make things awkward and on top of that she's a tsundere. she likes to call sensei baka and dummy whenever she's teased.