Daemons who were once human from a deeper realm then the natural world.
Nope. Doesn't sound like anything else in the story. Not one bit.
There will surely be no ill repercussions from this.
Don't get distracted by the terrible speech in the restaurant where everybody stood up and clapped at the end.
Remember that he blushed and stuttered when Sun invited him to the bathroom, then Sun told him to go for things outside his usual strike zone.
This is going on the yaoi route.