The protagonist of the hentai Kenichi-kun and his girlfriend arrive at an old mansion. It looks unremarkable, but when darkness falls, sex and lust awaken inside the mansion - behind every door a beauty waits impatiently for her master. The girls crave the pain and punishment that would make others beg for mercy! Our hero tries to resist the uncontrollable feeling, to possess this mansion and harem. Soon another personality, full of darkness and lust, is born in him...