Nightmare Fuel / Seven Knights

• Bathory becomes a vampire after slaughtering her family and everyone else in her household. Her reason for doing so is driven by the immense hate and rage she feels towards her parents, who used her innate beauty and talents to bolster the image of the family. Soaked in their blood, her family's ancestral powers were awakened and, at the cost of her sanity and humanity, Bathory becomes a bloodthirsty vampire.
• Dellons' misery started 1,500 years ago when he had to kill his own brother who was trying to kill his fiancee, Claudia. This doesn't help much as Claudia is stabbed and killed by her own sister. The webtoon shows Claudia being stabbed from the back which ripped all the way through her chest. The webtoon also demonstrates a vision in which Dellons' sister is brutally stabbed right before his own eyes. It's not clear if it's an actual flashback. Link to webtoon: http://sevenknights.netmarble.com/en/toon/view/203/1
• Karin's family was said to have been killed by Orcs and her becoming an orphan. Karin's suffering does not end there as she's shot with power of destruction by Pascal early on and then kidnapped for most of the story.
• Rin's webtoon reveals that Miho murdered Rin's close and loyal servant, Yun, out of the hatred that Miho has for her. Miho throws a bag towards Rin which contains Yun's hat, this shocks and traumatizes Rin.
• Generally speaking most of the webtoons are slightly more graphic and violent compared to the game scenes. Specifically Dellons, Spike and Ace's webtoons which feature a lot of intense battles with swords.