Haruka and the other club members decide to hold a training camp to prepare for prefectural.  Each member follows his own regimen.  However, Rei is unhappy about falling behind and heads back into the ocean at night to practice.
That sounds hard.
Das klingt schwer.
Se ve muy pesado.
Qué duro, ¿no?
C’est assez draconien…
Sembra davvero dura.
Parece difícil.
По-моему, трудновато это.