After Transmigrating as a Demon, I've Been Adopted by Angels! - Chapter 231 - You Are Just Like a Worm

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.

In the steampunk world, races are mixed, and all spirits coexist. This is a different world that worships Iron Armored City!

The smelting furnace provides kinetic energy, heavy weapons protect dignity, and armor is the strongest protection. Every mobile ‘Iron Armored City’ is an independent force.

Every ‘Iron Armored City’ is a hunter driving in the wasteland, and likewise, all Iron Armored Cities are prey in the eyes of the stronger!

- Description from novelbuddy

When we lose our hearts to the wrong person, setting a betrayal in place, how well do we come out from such hurt?

This is the story of a young slave gladiator in an underground arena. He doesn’t know about his past or how he got to where he is, only that his name is Aegir, and that he is strong.