One hot summer day, the 4 girls and Haruko are playing in the pool. They notice that Pets is missing. Kana later hears from her classmate Aida that Pet's family is very rich and they are moving to Mars. 
Like the time with Hijiri.
Just because we're friends?
Es ist genau wie mit Hijiri.
Lo hiciste con Hijiri.
Lo hiciste con Hijiri.
Pareil avec Hijiri.
Anche quella volta con Hijiri...
Com a Hijiri foi a mesma coisa.
Só porque somos amigas?
Забыла про случай с Хидзири?
Что с того, что мы друзья?