Face To Face with Death by @Umeko (Umeko Yamitaro)

Here is a scene of when Skyiler was kept in a bunker/lab. This is at the very end of it.

The woman does not know how close to death she is.

He is tugging at the chains so hard he starts to bleed, but the chain around his neck is starting to crumble on the wall.

This is the reason for his everlasting hatred for humans