phenomen a book

In a world where the ecosystem is almost completely destroyed we meet Zion Regulus, a kid given a shitty life equivalent to this shitty world. He dies though, and through a slim chance his soul was selected as the host for the ‘System’. Now reborn as Cynical, an ancient world devouring monster, he is met with a unique ability. [Variant Break], which makes separate versions of himself? With this ability he wants to enact his greatest fantasy… the Destruction of the Human Race~!