a brother-in-law who is having a hard time with his brother's life. the younger brother who sees that figure up close every day. unable to stand the too painful figure, he impulsively hugs and kisses his brother's wife. if it ended there, it would be a temporary mistake. but the two who cannot suppress the surging emotions develop into a dangerous relationship beyond kissing. feeling guilty towards her husband, but the stress of the days she has endured so far overflows, and the brother-in-law's body is sought after with "more! more!". and the younger brother, who also embraced his pitiful sister-in-law with determination, from the middle on, feelings similar to love overflow, saying that he cares for his sister-in-law more than his brother, and cannot be stopped! the emotions that have suddenly flared up in both of them synchronize, leading to a fulfilling sex that they have never experienced before! once you taste this, you can't do it with anyone else.