When Yui Ootsuka and Yuuta Kimura swap bodies after a tree-bound collision, they face a twist unlike the usual body-switch tales - they can't switch back. Forced to adapt to their new lives in each other's forms, they opt to keep their strange predicament hidden. As former classmates turned intertwined by this bizarre accident, Yui and Yuuta navigate the challenges of living as someone else. Through this enduring struggle, they uncover the profound essence of experiencing life from another's perspective.