who else thinks that the shadow thing is probably whatever summoned him to this world and its incompetent so it screwed up. he was probably supposed to understand the language
so they agreed that the hero is getting targeted and its highly likely something is going to happen on the ship but didn't put anyone to watch the hero while on the ship. genius
This manga was pretty decent but sadly you will notice in the later chapters how they rushed the story because the knew it was going to get axed. The ending is completely unsatisfying, only two sins defeated and we will probably never get more.