Born as a succubus and facing death as a human, the innocent succubus ‘Tan Cho-ah’ chose to pursue humanity by collecting energy, fulfilling her mother’s wish. She descended into the human realm fully equipped to gather energy, but the human world she encountered was quite challenging. In her frustration, a mysterious man named ‘Cheon Sa-bin’ approaches her, and seizing the moment, Cho-ah employs her succubus abilities to entice Sabin and successfully disrobe him… What is revealed beneath his removed shirt are the wings of a massive archangel?! “‘I want to become human’… I’ll assist since it seems entertaining. You require ‘energy’, right?” Cho-ah experiences her first passionate night with the affectionate yet draining methods of the succubus…! ‘I’ve never heard of an archangel possessing this much endurance~~!!’ The naive succubus Cho-ah’s ambitious scheme to attain humanity!