Riko heads to a shopping mall after school where a boy suddenly calls her by name.
While pretending to remember who he is, through their conversation Riko discovers she once rejected him.
See if they'll exchange 
what's inside your head, too!
¡También mira si pueden 
cambiarte el cerebro!
¡Y de paso pregunta si pueden 
cambiarte el cerebro!
Pendant que tu y es,
 demande-leur aussi d’échanger ton cerveau.
Veja se eles trocam o que tem
 dentro da sua cabeça, também!