In their quest to build a rocket, Umika and her friends decide to visit Matataki, their classmate who is a skilled engineer, but doesn't attend classes. However, they soon find out that this mechanic's got one short fuse!
A lot happened yesterday...
...ما حدث البارحة
Schließlich ist so einiges passiert …
Ayer pasaron muchas cosas,
Ayer pasaron muchas cosas,
Avec tout ce qui s’est passé hier…
Ieri ne sono successe tante.
Muita coisa aconteceu ontem...
Вчера такое случилось…