

“ | Truthfully...
I have nothing left in life, so I've made peace with throwing it away. |
„ |
~ Ceroba before her fight with Clover in the Pacifist Route. |

“ |
I never claimed to be a saint. I'm drowning in a sea of mistakes like anyone else. But instead of sinking... I'm chasing the one ray of sunlight peeking through the surface. I tried letting go, moving on... But I guess deep down, I'm too stubborn to live like that. This is my fate. This is how it must be. |
„ |
~ Ceroba before her final phase during the Pacifist route. |

“ | Truthfully...
I have nothing left in life, so I've made peace with throwing it away. |
„ |
~ Ceroba before her fight with Clover in the Pacifist Route. |

“ | Why...
Why have you done this? Is it because of some personal crusade? Your species already imprisoned us here. You won. I don't understand... ... Chujin was right all along. Humans want to rule over us; control our lives... Even if we freed ourselves, they would only wage war again. If only I stayed here and didn't run off, I could've protected St- Enough talk. Starlo was the... the only friend I had left. What you've done is unforgivable. ... You WILL know the pain you have caused. |
„ |
~ Ceroba to Clover before the Genocide fight. |

“ |
I never claimed to be a saint. I'm drowning in a sea of mistakes like anyone else. But instead of sinking... I'm chasing the one ray of sunlight peeking through the surface. I tried letting go, moving on... But I guess deep down, I'm too stubborn to live like that. This is my fate. This is how it must be. |
„ |
~ Ceroba before her final phase during the Pacifist route. |
Summary[]
Ceroba Ketsukane (Or Japanese transliteration: 欠鐘セロバ) 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 and sceptical, 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.
Keys: Pacifist | Genocide | Kitsune Form
Stats:[]
Tier: 8-C, Possibly High 8-C, up to High 8-C when serious | High 8-C, likely higher | High 8-C, likely far higher
Powers and Abilities:[]
- Superhuman Physical Characteristics
- Experienced Weapon User (Ceroba seems to be Ambidextrous, as she sometimes uses her left hand and right hand to hold her staff in some of her stances, she also uses her right hand to hold the staff in her battle sprite, and she is also able to hold her staff interchangeably in her Kitsune Form)
- Magic, Inorganic Physiology and Danmaku (Monsters' bodies, compared to human ones, do not have much physical matter because of them being made of magic to the same degree humans are made of water, being able to use their magic in various ways like making bullet patterns, which are showcased in most of their fights, with them also being able to control said magic)
- Non-Physical Interaction (Monsters' magic is showcased to be able to actually harm Mad Dummy, who can't be harmed because of their true body being incorporeal)
- Durability Negation on the SOUL (Her attacks target the SOUL directly)
- SOUL Absorption and Transformation (Monsters can absorb the SOUL of a defeated human, transforming in a "horrible beast of unfathomable power", with their power greatly increasing the more SOULs harvested)
- Energy Projection (Can create dozens of bullets made out of Magic from their staff, which get further enhanced upon charged)
- Gravity Manipulation (Can create what seems to be a vortex, which pulls even Clover's soul into)
- Weapon Summoning and Creation (Ceroba is able to summon her staff at will, Monster's magic can create real objects which are tangible, Ceroba is able to create various bells and bombs while fighting Clover)
- Forcefield Creation and Attack Reflection (Created a forcefield which reflected one of Axis' attacks,And in her Kitsune Form, she's able to create a forcefield infront of herself, however, it can be taken down with enough hits)
- Plant Manipulation (Ceroba can attack Clover with a barrage of flower petals)
- In her Genocide Key, she should have all the previous abilities slightly amplified, alongside
- Paralysis Inducement (Can paralyze one's SOUL for a slight second)
- Status Effect Inducement and Statistics Reduction (She is able to make Clover lose more of their full HP per hit with her magic attacks, an ability that works similiar to Sans' Karma)
- Possibly Spatial Manipulation (Is able to manipulate the battle box in order to harm those who come in contact with them)
- Extreme Pain Tolerance (She can fight with Genocide Clover while being shot multiple times by their Wild Revolver, even with their body greatly damaged. A single bullet of the Wild Revolver is already enough to have Starlo fall onto his knees and kill him)
- All of the previous greatly amplified, alongside
- Statistics Amplification, Levitation and Transformation (Upon wearing a mask which was designed for Kanako, Ceroba enters her Kitsune Form, which allows her attacks to become far more versatile and faster, her sprite shows her levitating)
- Limited Telekinesis (was able to hold Clover's SOUL in place with her hand for a second)
- Fire Manipulation (In her Kitsune Form, she's able to attack Clover with fire bullets)
- Water Manipulation (In her Kitsune Form, Can attack Clover with what seems to be small typhoons)
- Radiation Manipulation (The Gamerblood Energy Drink is a common product in the Underground despite it containing radioactive waste)
- Necromancy (As the body of a monster is made of magic, it is attuned to their SOUL. Because of this, they do not leave a corpse at their death, instead turning to dust and with their SOULs also not lasting after dying, but just breaking into pieces or disappearing completely)
Attack Potency: Building Level, Possibly Large Building Level (Showcased to be a strong monster, as she was able to take down both Starlo and Martlet with minimal effort, can crack a steel panel quite easily, and her Magic can withstand Axis' attacks, the latter who could Neutralize a Human who was likely in the midst of a Genocide Route, with Human SOULs on their own already being stronger than Monsters') up to Large Building Level+ when serious (Can greatly harm a Pacifist Clover to the point of having them in the verge of death) | Large Building Level+, likely higher (Stronger than her Pacifist self. Can keep up with a Genocide Clover, who's superior to their Pacifist key due to their gain of LV) | Large Building Level+, likely far higher (Stronger than before, can constantly keep up with Clover in their Shooter Mode if not for their mask being broken)
Speed: Massively Hypersonic (Able to tag Pacifist Clover, Martlet and Starlo and is portrayed to be stronger than them) | At least Massively Hypersonic (Can keep up with Genocide Clover, with them being far superior to their Pacifist self) | Massively Hypersonic+ (Her attack speed is greatly amplified to the point of keeping up with Clover in their Shooter Mode)
Durability: Large Building Level+ (Was able to take a hit from Clover's SOUL Blast without any injuries) | Large Building Level+, likely higher (Can tank multiple gun shots from Genocide Clover) | Large Building Level+, likely far higher (Her barrier techniques make her far harder to defeat)
Stamina: Superhuman (Fought Pacifist Clover, and even tanked one of their big shots, being perfectly fine afterwards. In her Genocide key, she is capable of keeping up and fighting harder with a GenocideClover, even after the latter having damaged them severely with gun shots, in her Kitsune Form, she can continuously fight with the former with no signs of exhaustion as long as her mask isn't broken)
Range: Standard Melee Range, Tens of Meters with Magic attacks
Standard Equipment: Her Staff, Kanako's Mask
Intelligence: Above Average (Ceroba is observant and strategist, an example of this being how she's capable of deceiving Clover in the Pacifist Route into helping her progress through the Steamworks, even with their true intentions being taking their SOUL for their own benefit, although, she is very stubborn and may risk personal things in order to achieve what she desires)