A mom and daughter swap bodies during a lightning strike, and suddenly the joke writes itself. Mom rediscovers being a student while Mikan learns why her mother's patience was never infinite. The comedy isn't built on the premise alone, it lands because both of them are genuinely unprepared for the other's life, and watching them fumble through it in real time exposes how little they actually understood each other. The dad and older brother scrambling to fix the mess only makes it worse. What starts as a obvious fish-out-of-water setup becomes something quieter: two people realizing they'd stopped seeing each other clearly.

A lightning strike on a stormy night hits Mikan and her mother at the same moment, and the two wake up in each other's bodies. In the days that follow, Mom has a great time going back to life as a student. Mikan, meanwhile, finds herself stuck with the housework and struggling to keep up. While the pair live out each other's routines, Dad and Yuzuhiko work hard to find some way of putting them back where they belong. This feature-length comedy builds its laughs around the body swap and the family's scramble to undo it.