Inma o Fuuin Suru Dake no Kantan na Adventure

Succubi conquered the world, taking their pleasure from humans like locusts on a harvest. Consumption was outpacing supply. At this rate, humankind would go extinct. Some humans survived the fate of a seduced death and plotted their counterassault. The key was a magic seal called the Succubus Ring, which absorbs souls. The succubi wanted the Ring, lust demons wanted the humans, the world was awash in all kinds of desires--...... "Hahaha... I'll turn you into a succubus too..... You will be my special pet!......"