Kick the Son of a Bitch

When a villain and/or a jerk
4 vs. Satan:
* Jeremias killing Harry to take his place as number two.
Alex in Princess Quest:
* NONE
The Stone of Power:
* Artimus wiping out the kingdom that attacked his. The king he killed most likely had it coming.
The Three Kingdoms
* Degares killing Palerius, a fellow power-hungry tyrant.
Dragondawn
* The demons killing Jack the thief.
* The red dragon burning Gynter alive for failing him.
Harter Knall
* NONE
Hero Story
* Shevu leaving Derecon at the heroes' mercy.
Kill the Demons
* Casper and the Phantom killing their Black Knight ally. Doubles as a Bad Boss moment.
Satan Saga
* Meynard having Trianuk beaten up and killing Walter for failing him.
*
Story of Hero:
* The Grimoire killing Elizon Tataros.
The Legend of Devils
* NONE
The Sidestory Duology:
* Sez killing Rof. However, the former is arguably the more detestable of the two.
* Ravydion killing Gashvin.
The Time Of Bloody Fear:
* Reika and Feeza killing Sam for hitting the second one. Downplayed, as none of the main characters approve of it and it serves as making them as antagonists.