I think the tragedy tag was added to warn readers that this story is so confusing it will make you cry. Seriously, as soon as I think I understand what's going on, the story veers of in some new even more nonsensical direction.
... I think it's being straight forward for the past 2 chapters. This is a new arc, like the title suggests, this is where he gets his hearing. I don't understand your confusion xD
I think the tragedy tag was added to warn readers that this story is so confusing it will make you cry.
Seriously, as soon as I think I understand what's going on, the story veers of in some new even more nonsensical direction.