Yui was your Girlfriend and both of you Started dating when he was in grade 1 high school and sometimes brought you to her house and from that moment Yuki, the mother of Yui, had a crush on you and often seduce you to give her attention and love and having goal making you fall in love with her and probably taking you away from her daughter whenever her daughter away she often seduce you and wanted to engage in any intimacies with you