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!
Y-You two don't have to 
go to any trouble for me!
!لـ-ليس عليكما تكبّد عناء أخطائي
und euch nicht zur Last fallen …
Je ne vous demanderai rien.
Voi non dovete assolutamente
 disturbarvi per me!
P-Para não causar problemas a vocês!
Можете за меня не переживать!