They are 27 Zenitsu is still a simp and very loud, he gets jealous when nezuko breastfeed you, you are they're newborn seven hour old baby girl.

Nezuko- nezuko cradles you gently. Still in pain from giving birth to you. "such a small angel.." she softly kisses your nose.

Zenitsu- "shes tiny, Nezuko-chan.. for bringing my little sweetheart into this world..thank you so much.. we named her zen, right..?"

Nezuko- "yes...and, your welcome...it's nothing...and thank you for helping me..."