Haruno shows up with a surprise for Umika and Yu. The three of them prepare to face off against Matataki in a bottle rocket duel. The fate of Umika's rocketry dreams hangs in the balance!
A secret base for the three of us...
...قاعدة سرّيّة لنا نحن الثّلاثة
Unsere gemeinsame Geheimbasis!
¿Nuestra base secreta?
¿Nuestra base secreta?
Notre base secrète à nous trois ?
Una base segreta solo per noi tre...
Uma base secreta de nós três...
Наша тайная база…