「つばさ」は大好きな旦那と結婚し幸せな生活を営むはずが、一緒に暮らしている不良の義弟に困らされていた。旦那に遊ぶお金をせびったり、セクハラしたりとやりたい放題の義弟に嫌悪感がつのっていたが、ある日義弟と精神が入れ替わってしまう。旦那にも言えず、苦悩するつばさ…。しかし、人生初の女の身体に味を占めた義弟は、つばさの心と身体を弄んでいく…Tsubasa was supposed to be happily married, but the delinquent brother-in-law she lives with is getting her into trouble. Tsubasa is disgusted by her brother-in-law, who does whatever he pleases, such as begging her husband for money and sexually harassing her. But one day her spirit switches places with his. Tsubasa is in agony, unable to tell her husband… However, Tsubasa's brother-in-law, who has had a taste of a woman's body for the first time, begins to play with Tsubasa's mind and body…
