Five members of a high school's Cultural Research Club mysteriously swap bodies with one another, giving each a startling glimpse of their innermost thoughts.
After further body-swaps occur, this time involving three of them at once, the members of the Cultural Research Club finally begin to realise the ramifications of what is happened. What's more, they are visited by one of their teachers, Mr Goto, who appears to have experienced a body swap of his own.
Iori tells her story about her 2nd father who abused her and her mother. Taichi in Inaba's body vomits and worries about Inaba's well-being afterwards. Inaba explains that she has had trouble trusting others her whole life.