Baka and Boing

Yamada Taichi is an average and lonely boy who falls in love with an Idol named Shina Kokoro. One day there is a DVD promotion and a handshake event with the idol somewhere on the rooftop of a complex. Kokoro falls off the rooftop, onto Taichi who is on his way to the event. Both of them are being hospitalized. Taichi is only slightly injured but Kokoro had to go trough a sugery. While Taichi is being explained to by a nurse about what happened, Kokoro comes to Taichi's ward room. But she comes trough the wall! What's happened to her?!