It's all due to a past trauma during his childhood which made Aihara Heki to loose the ability to feel pain ..Heki hates ordinary violence hence he roams around various night clubs to search for partners who will make him experience the pleasure of pain through sex ..on his quest he came across Ruri ,a serious college student at day & trouble maker at night ..who is known for being insanely strong ..& Heki was all ready to take on this opportunity by approaching the guy
Love Ache Holic