Well, the performance definitely failed as he was trying to join the sirens in their song.
It’s just a coincidence that failing the performance also doubled as a tactical success!
Is this the anime where they eat the monsters in the dungeon? Do they eat the siren…
Yes, it’s called “Delicious in Dungeon” and also no… Or maybe, they ate their eggs hidden in the seaweed wig of another, more fish-like, individual
The sirens lay their eggs in this dudes hair? And folks are just like “Yum, let’s eat!” and not like “Hold up what freaky deaky shit went down between these two and why would we want to put that in our mouths?”
They definitely ask, then are like, “Oh it’s yummy!”.
I read it that he was intentionally singing bad. If he sang it well, then the sirens would have never been interrupted. Plus, the lack of anyone reacting to his bad singing makes it feel like they were in one it being intentional.