'Mei' whose heart was about to leave her husband who was all about work. - She began to have her heart drawn to me, her brother-in-law who lives in the same house, and a forbidden love gradually sprouted between the two of them. The two make a "promise of kissing only" and sneak up on each other. However, my desire did not stop. - While love and desire are intertwined, Mei hits all her feelings for me, and although Mei also has feelings for her husband, she finally crosses the line and goes inside to seek each other violently. The destination of this love is ruin, or...