Chapter 123

The Origin Of Reaper's War is the One Hundredth chapter of Lucas’ series Trey's Anime
The grand overlord reveals his tragic backstory of his brothers death of the battlefield caused by humans, and how since then he put the events in motion for the war Lucas and reaper fought. (events of previous series) After gaining a following and nearly destroying human civilization he made a narrow escape with his followers. Centuries later one of his own betrayed him and left him handicapped, so he birthed reaper who was always meant to be trapped in the dream world(lucas accidentally freed Reaper from the dream world in 2015, lead to a small scale war over the fate of the planet that was mostly kept quite from the world. war ended in 2019) it also was always meant to be that Lucas would be the key to freeing him from that world. Because of Lucas’ wish to save others and curiosity, he ironically brought the brutal war back to the present. 
Released:  Manga: February 4th 2022 Anime: Unreleased