Spoil

""Why do you oppose me? To be born... to spoil... to return to the earth... it is a thing of beauty. How can you not see that?!""

Spoil (スポイル) is the UMA that represents spoiling and decay.

He is the titular antagonist of the Spoil Arc.

Personality
Spoil believes that death is beautiful and enjoys watching others die.

Spoil Arc
Spoil arrives in Longing and comments the town will be easy to spoil and decides to start with the people, cursing everyone in range and causing them to turn to zombies.

Andy, Fuuko and Shen arrive in Longing for a quest given by Apocalypse. Andy gets cursed while fighting zombies, but one is willing to tell him where Spoil is. She takes him to the church to marry him, but then asks him to kill everyone to save them and then to kill a statue she points to. Andy then cuts the statue, revealing to be the face of Spoil, who is annoyed that Andy isn't spoiling and realizes he is a negator. Andy then starts fighting Spoil, telling the zombies he will be taking Spoil down and they are free to join him.

While they fight Spoil, a zombie accidentally touches Fuuko and as he gets on Spoil, it causes an incident hurting himself and Spoil. Seeing that Andy announces that if the zombies touch Fuuko, they will turn into bombs and will harm Spoil more than they have been doing so far. The female zombie then hugs Fuuko and runs towards Spoil, who grabs her, but slips and falls into a building full of gunpowder and causes a big explosion.

Fuuko starts touching zombies, who rush at Spoil and cause additional explosions. Spoil then inhales the rest of the zombies and transforms into phase two and shoots a beam that disintegrate the Statue of Liberty from few miles away. Andy jumps in to fight him, but realizes that Spoil now has a field around him that causes anything to start decomposing and gets knocked down. Spoil realizes this is a quest and is annoyed that Apocalypse is meddling with his plans. He tells Fuuko that before he was born, there was no decay in the world, but now people don't take life for granted and do their best to live even one more day. He wonders why she is so attached to her body and she explains its because she has a dream of being a normal girl. As she shares her dream, her numbers on her stomach from Spoil's curse increase. Shen then comes with Nyoi-Kinko Staff, commenting that he can reach it with it and starts attacking Spoil from distance, while extending the staff. Shen activates his ability and Spoil starts to wonder why his body isn't listening to him as Shen's ability causes him to do the opposite of what he wants to do. Spoil is angered such ability exist, Untruth. Seeing the overwhelming strength of Spoil, Shen is excited as that way he may meet Victor. Shen explains that they need to take out the core of Spoil, but they need to stop his spoil ability first, and Fuuko suggests they go to space. Spoil manages to break free from Shen's ability, by destroying some buildings and causing a dust clouds, blocking Shen's vision. But with Mui's help they locate him and using the staff, he extends it and sends both Victor and Spoil.

In space, Spoil tries to disintegrate Andy, but as he had removed his card, he regenerates instantly and his hair grows and becomes darker. He shoots two of his fingers and they regenerate into copies of himself and cuts Spoil to piece and takes its core. As he comes back to Earth, Shen tells Mui to beam away Spoil and they capture him.

Abilities
Decay: Spoil can cause any organic matter that enters into his radius to spoil away at will.
 * Zombification: Spoiling living beings is harder than inanimate objects, so Spoil instead places a timer on humans in his range. Once the timer reaches zero, the humans will spoil into zombies.

Disintegration Beam: In his second form, Spoil can fire a laser the disintegrates any thing it hits instantly.

Spoil Field: In his second form, Spoil has a field around his body that spoils living things who get close instantly.