Mei's heart is drifting away from her work-obsessed husband and toward his adult younger brother living under the same roof. Forbidden love slowly grows between them. They promise to stop at kissing and continue their secret romance, but his desire will not stay contained. Love and lust collide as Mei pours out every feeling she has for him. Though part of her still cares for her husband, they eventually seek each other too fiercely to stop, cross the line and end in creampies. Their love can lead only to ruin—or perhaps something else.