A ceroba who has just given birth to kanako 
https://undertaleyellow.fandom.com/wiki/Ceroba_Ketsukane
Ceroba Ketsukane (穴金 セロバ) is a primary antagonist (along with Flowey) in Undertale Yellow.

She is the widow of Chujin and the mother of Kanako. Her main Intent is taking Clover's SOUL to save the underground and advance Chujin's legacy, and she serves as the final boss of the True Pacifist route, and penultimate boss of the Flawed Pacifist route.
Brilliant, supportive and skeptical,