Penniless Reiko Kujouin is an everyday frugal orphan living on her own. However, despite her less-than-favorable conditions, she is able to attend the prestigious Meisei Private Academy thanks to a full scholarship.

On the first day of school, a girl named Yuria Sakurada barges into Reiko, accusing her of being a villainess who flaunts her wealth and status. But this is a far cry from the truth. Wealth? She has barely enough to eat every day. Status? She is from a fallen noble family at best. Believing that Yuria is suffering from delusions, Reiko is too kind to break the truth to her.

This is the beginning of Reiko's high school life—the story of an anything-but-rich "villainess" taking each day in stride.