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!
Oh?
ماذا؟
Hm? Wo ist Umika-chan?
¿Eh? ¿Y Umika?
Ahí va, ¿y Umika?
Tiens ? Où est Umika ?
Oh?
Oh?
Ой,