Horror Comes I Have 18 Levels Of Hell Inside Me

Aberrations awaken, monsters run amok, the cycle of reincarnation broken. The world plunged into chaos! As humanity faces destruction, humans awaken the ability to form aberration contracts, becoming Aberration Guardians, fighting aberrations with aberrations! A Guardian can only be contracted to a single aberration, only those with extraordinary talent can possess multiple aberrations. But Lin Chen has 18 levels of hell in his body! I am hell itself! I am the underworld! If hell has been emptied, then with my 18 levels of hell, let me drag each and every one of them back!