Matataki gives the others a crash course in model rocket building. Some time later, Umika and her friends attend a model rocketry festival, and run into a familiar face...
If you use too much force, 
it'll explode on you.
،إن استعملت الكثير من القوّة
.فسينفجر في وجهك
Si lo fuerzas, te explotará en la cara.
Si lo fuerzas, te explotará en la cara.
Se usi troppa forza, ti esploderà in faccia.
Se botar muita força,
vai explodir na sua cara.
переборщишь с силой —
и он рванёт в руках.