After losing her husband, Hae Jinya ends up marrying Yeon Woohee, her late husband’s disciple. Dressed in black mourning clothes, Jinya looks at Woohee. In that moment, he blows out the candle and reaches for her, drawing her into him.

Amid the confusion, as Jinya’s body and heart are gradually consumed by the pleasure Woohee gives her, a boy’s voice she once heard overlaps in her mind:

“When I grow up, I’m going to marry you, Madam.”

Woohee has loved only Jinya since childhood, while Jinya feels guilty, unable to accept such an immoral love. Is the relationship between these two—crossing the line of taboo—truly love… or an irreversible fate?