Early in the morning, Kirihito orders the club members to harvest seaweed and do many other strange things, like standing on an unsteady boat to improve their balance. The club members admire Kirihito's methods, but have doubts about his experience and abilities. They eventually confront him. In order to demonstrate his coaching abilities, Kirihito declares that he will have the rookie Mitsuhashi Kei beat the other club members.
If you already know that, 
why do you train so hard?
لماذا إذًا تتدرّب بجهد إن كنت تعرف ذلك مسبقًا؟
Entonces, ¿por qué te esfuerzas?
Entonces, ¿por qué te esfuerzas?
Pourquoi
tu t’acharnes à ce point ?
Mi spieghi perché nonostante tutto
 continui a mettercela tutta così?
Então por que você se dedica tanto?
Почему... ты продолжаешь тренироваться?