Thanatos System

When the sins of humans were far too much, even for Gods, they decided to send out their own foot soldiers, the winged Angels to exterminate the remaining humans, to reset this world and start life anew. This sparked a war of worlds between Gods and humans.

The last bastion of humanity is the joint country of Niflheim, a place that only came to be due to desperation, every single person still breathing resided here, in fear of meeting the Angels and their wrath. Due to years of fighting against such beings, the remaining humans have all developed “Anima Cells.” These allow them to be able to use magic as well as heighten their physical strength levels.

Yin is the adopted son of an unremarkable family of farmers, the monotony of his daily life in the stables and farmlands was a blessing, a blessing in that he did not require to fight the winged executioners in their endless parade for justice. One day, due to an unfortunate incident, Yin’s world would never be the same, just as his head was about to be severed from his body by an angel.

A whisper was heard.

[ You have been chosen as worthy of the Thanatos System, accept or perish. ]

The last thing Yin wanted to do was perish.

Disclaimer: I do not own the artworks on the book cover. I simply photoshopped it, all rights go to the creators.