Schlësselwuert Underwear

Student council president Takane Takamine is a popular star student. On the other hand, Koushi Shirota doesn't have many friends. That all changes when Koushi accidentally discovers Takane's ability to go back in time and alter past actions just by changing her lingerie. After some pestering, Koushi agrees to help Takane and be her closet, by having spare lingerie on hand.

Fourth-grade friends George and Harold have a shared love of pranks and comic books -- and turning their principal into an undies-wearing superhero.