I Thot You Was a Toad's manga / #cannibalism(2)

Confusing and muddled. It starts off as a sweet romance and turns dark, then darker, revealing a horror-filled tragic backstory. Somewhere along the way, there's a suicide pact, and then, ghosts. Good luck making sense of it.

Demi-immortals battle each other over The Offering, somebody who's genetic wiring is designed to have his heart eaten, extending their life-span and superpowers (calling up ancient gods and demons), while human corporations seeks to exploit them for eternal life. This time, an immortal named Shidou and the offering, Motoki, fall in love with each other and wage their fights and flights together.