Succubus is a jind of female demons who hunts for human masculines and have fucky-fucky with them to gather their life force. The chracater of game is some dude who happened to meet with one of these susccubus at his bedroom where he was jurking off some sexy looking versions from cover that is magzaine. Ofcourse he will not forget a hcnace to fuck a true cutie even tho there'll be magic involved... Game is made in genre of kinetic novel which is a combination of visual novels and animated fuckfest scenes. The only problem that you will get is that all the text here are in japanese but pitctures are displaying the narrative so you'll get the idea even in case you don't know the terminology. In terms of the animated scenes no translation is really required by them.