Ren decides to challenge the Colosseum after being inspired by the epic battles between monsters. 
But Aoi's a stickler and wants to do things right before joning the fray.
It's pointless unless we do our best.
Es bringt nichts, es sei denn,
wir geben unser Bestes.
No vale la pena hacerlo así.
Desse jeito será em vão.