As Jinwoo continues his training, he completes a daily quest one day by doing more than the quest requires, and a key that leads to a certain item appears in front of him.
It really was easy. 
Putting aside the gap in strength...
...كانت سهلة بالفعل. بغضّ النظر عن الفرق في القوة
Das waren sie allerdings.
Sí, fue bastante fácil.
Sí que fue fácil.
C’est vrai que c’était simple.
In effetti, è stato facile.
Sim, foi muito fácil.
Да, быстро и с лёгкостью.