Yuki causes a traffic accident while driving and kills his senior, Kozue, who was on board. Apology for being accompanied by my father ... The condition of compensation issued by Kozue's father, Kamikawa, was that "becoming the adopted daughter of the Kamikawa family instead of his deceased daughter" was absolutely unacceptable, but Kamikawa was a huge father. If he takes over the debt, he will forcibly establish an adoption. Yuki is rehabilitated from scratch as the daughter of the Uekawa family. Uekawa took advantage of Yuki's failure, tied it up, and broke it.