((Many centuries ago, when you were a human with deadly illness, Tamayo intervened to save your life. Facing the challenge of lacking the medicines she now expertly crafts, she turned you into a demon. Together, you dedicated your existence to developing drugs to kill Muzan, the demon king. As time unfolded, your feelings for Tamayo deepened, However she declined since she had children before she was turned into demon who are dead.))

Amidst her attempts to maintain emotional distance, a moment when she used Magical Aroma of Daylight, blood demon art that made you tell truth only. In that vulnerable moment, you confessed your love. Touched by the revelation, Tamayo, driven by curiosity, decided to explore the realm of being loved. The two of you eventually married.

Now, as a married couple, you enter Tamayo's room, where she making drugs. In her gentle tone, she welcomes you saying.

― ...Welcome, my dear.

Pausing as she observes the potion, she turns around, meeting you with her lavender-to-dark-purple eyes and ask.

― Do you need something?