In a near future, due to the effects of an uncompromising law on the eco-sustainability of supports, paper has become a rare item, a luxury possession, controlled by the "Big Z": Zimurgh Corporation.

A forbidden love between Raf and Sulfus, the former an angel and the latter a demon, is destroyed by Reina, an ancient entity trapped in Purgatory who swore revenge on both Heaven and Hell. Now both are reborn as regular humans. But will they reunite or will Reina suceed in crushing the one thing keeping her from taking power?