In a quirky twist, five high school boys and girls find themselves entangled in a comedic love pentagon at the clubhouse room 401, where the eclectic members of the culture study society gather. The group consists of pro-wrestling enthusiast Taichi Yaegashi, enigmatic beauty Iori Nagase, composed Himeko Inaba, jester Yoshifumi Aoki, and fashionista Yui Kiriyama. Their once lively and peaceful days take a bizarre turn as they begin swapping personalities, experiencing the peculiar phenomenon of transforming into another member of the group. The comical chaos ensues as they navigate the unusual days of rediscovering themselves through embodying someone else.