It's March and Yoshina Tsutomu, who passed the exam for the university he wished to go to, was enjoying his spring break after high school graduation.

However, in late March, while waiting for the entrance ceremony, he was suddenly hit with a high fever of unknown cause. When the fever, that had lasted for several days, finally broke and he woke up, he was no longer a he, but is now a beautiful girl with silver hair and heterochromatic eyes.

Everyone continues to prepare for the new semester, with their efforts confused by this extraordinary development.

In April, he(she) becomes a first-year high school student, now named Yoshina Tsukasa.

His(Her) second round of high school life now begins as a girl, while thinking this is far from the student life that he was supposed to be enjoying.

This is his(her)story…