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!
Number 1, flight distance unknown.
.الرّقم 1، مسافة الطّيران مجهولة
Nummer 1: Distanz unbekannt.
Fusée nº 1 : distance inconnue.
Numero 1, distanza percorsa sconosciuta.
Nº1, distância de voo desconhecida.
Номер один — дальность полёта неизвестна.