At Yamaboshi Academy, the Cultural Research Club is just five students with nothing else to join, until Taichi Yaegashi, Himeko Inaba, Iori Nagase, Yui Kiriyama, and Yoshifumi Aoki start involuntarily swapping bodies with each other. At first it plays out as awkward comedy: they stumble through each other's routines and pick up each other's habits. It turns heavier once the entity responsible starts forcing the five to face secrets they'd never have shared on their own. This is the original Kokoro Connect light novel series.