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.
and started MS,
und mit MS angefangen habe,
y empecé a jugar MS,
y empezó MS.
et que j’ai commencé à jouer à MS,
quando comecei MS,