Reborn in 1996, the four-year-old soft and adorable Bei Yao knocked on the door across from hers. Behind that door lived a devil from a world twenty years into the future. The devil, Pei Chuan, is now five years old, with crippled legs, introverted and full of self-doubt. Later, when they are seventeen, Bei Yao becomes the most beautiful girl in high school. Pei Chuan, with a cold expression, grips the armrests of his wheelchair tightly and warns her, 'Don’t say you like me again, or else…' Bei Yao wraps her arms around his neck and sweetly smiles at him. Pei Chuan can’t help but hold her waist, and his suppressed emotions completely collapse. Having been the love of his life for two lifetimes, Bei Yao wants to know what the devil’s body temperature is like. Sensitive and self-conscious x healing angel, a childhood sweethearts' mutual pampering story.