Clan Building System: I'm not the Protagonist?! - Chapter 22: Event [4].

“Boss…I’m really sleepy….” My eyelids were starting to feel heavy. After all, it was past 3am. Most normal people would be asleep by now.

The celestial celestial beings who lived for more than 100,000 years were born and reborn in a small monk in a human world.
His motto: “It’s not as good as a medicinal medicine for ten years of hard work.” “Even if you practice a copper-iron bone, it’s not enough for my soldier’s attack.”

- Description from Novelupdates

Based on the popular Vocaloid song .

Rin, a young angel (presumed female, but angels don’t have clear genders) falls in love with a young human girl, Miku. However, their love is considered taboo, and so, Rin makes a deal with the devil to be reborn as the human boy, Len, in order to be with Miku. However, their happiness together is short-lived, and even that soon ends in tragedy.

I’m telling you, acting is really just a hobby. Not the VTuber part.