First Accident? ~First......~ / I Think ~One Step Back~ - S0.E15

Lala surprise-invites Rito to Haruna's apartment, but a device that she was working on turns a small mishap into a titanic situation.

The next day at school, Rito and Haruna are both encouraged by their peers to resolve the problem. However the location they thought isolated is soon wrapped up in yet another disaster!