Everyone envies An Hanshu for having an oni mother: a company boss who's gentle, beautiful, and fiercely protective of her son. But who knew his deadbeat dad had gotten what he wanted and run off without leaving a trace! All An Hanshu wants is an ordinary life: slack off at work and come home to dinner. Until one day, his airheaded oni mom calls him. "Son, I think I found the... 'key' your dad left behind all those years ago?" Well, there goes his peaceful life. Add a snow woman wife who comes with her own personal air conditioner, and a mixed-blood daughter who's cool in summer and warm in winter... An Hanshu thinks this chaotic, sickeningly sweet daily life might actually be... pretty great?