Ceroba Ketsukane

Ceroba is observant, and can tell how others are feeling just by a glance, and can also notice a shift or change in the other's moods. Though she is not hesitant to say them to others, she will try to hide them from those she loves as long as it does not harm others. An example of this is her relationship with Starlo, and she didn't confront him about his behavior until after his friends had come up about how it was making the rest of them feel. She is quite honest and straight-forward as well. This is evident from how she treats Starlo's shenanigans in the Wild East, saying she doesn't understand it and acting nonchalant when included in them, as well as her realistic assessment of Clover's fate before and after her battle in the Pacifist route. The exception to her realism is her husband, Chujin, who she always holds in high regard no matter what information is displayed to her that may say otherwise.

Brilliant, supportive, and skeptical, Ceroba is a powerful ally when it comes to wanting to help those closest to her. She is shown to care a lot for her loved ones. However, she is highly stubborn, even going so far as to question the true meaning of Asgore's words when confronted with the truth of her husband's employment. Because of this, she is firm on her husband's legacy as a scientist and a hero of the underground, and she spends the days after her husband's passing trying to complete the work that he had passed down to her. However, when she finally tests it on Kanako and has it result in her falling down, Ceroba's beliefs strengthen to the point that she is fully willing to kill Clover to save the rest of the underground.

Ceroba is a fox-like monster with beige fur and long, wavy ginger hair. Her hair is tied up in a ponytail by a red ribbon with a small gold bell in the center. She has a long, white kimono with red trimmings, a red obi sash tied around her waist and long, white boots to match.

Ceroba Ketsukane is a major character in Undertale Yellow. She is Chujin's widow and the mother of Kanako. Intent on taking Clover's SOUL and advance Chujin's legacy, she serves as the final boss of the Pacifist route.