For an OC in DOA fanfiction to be great, they should have well-defined powers or skills that are balanced and don't overshadow the existing characters. Their interactions with the canon characters should be believable and add depth to the story. Also, a distinct visual design helps them stand out.
A good OC in DOA fanfiction is one that feels like they belong in that world. Their motivations and conflicts should be compelling and not too far-fetched. Good development throughout the story and a connection to the main themes of DOA make them memorable. Plus, having some sort of impact on the existing storylines or characters shows their importance.
Chapter 254 is the strongest chapter-level answer because it starts from Just when everyone thought that Jiang Yan wouldn't last long and would... and follows through on A Jiang Li whose head was only filled with books and who never joked or....
Look to Chapter 244 for the clearest answer. It begins with LOL, Director Sun can't seriously think his sappy quotes are working, can..., keeps building through Yet, Director Sun was indulged in the emotions of having moved himself and..., and lands on I don't really have much to say..
The best chapter pointer here is Chapter 236, "The Murderer Returns to the Scene of the Crime Theory". It opens with The short-haired youth beside them chimed in, "That's right, senior, we... and closes on Everyone, try not to get too anxious." The crowd nodded, seemingly....
Chapter 289 is the strongest chapter-level answer because it starts from In the pure white room, a man lay motionless on the hospital bed,... and follows through on Reaching the end of the corridor, he took out his mobile phone and made a....
If you want the clearest chapter reference, go to Chapter 227. Early on, Your Four Pillars of Destiny is very strong, with wealth, authority, and...; later, the chapter leans on The comments section was filled with amazement as well..
If you want the clearest chapter reference, go to Chapter 273. Early on, Jiang Li, who was reading a book, suddenly jumped in fright.; later, the chapter leans on After closing the book, she looked at Jiang Yan with slight....
Chapter 232 is the strongest chapter-level answer because it starts from But soon, she suppressed this strange feeling and slowly began to speak,... and follows through on The moment he saw the information come through, Jiang Li fell silent..
A practical answer is Chapter 250, because it turns the idea into a concrete scene. The chapter opens with The knowledge that several guests were soon returning had fans arriving at..., adds pressure through Not seeing me for so many days and not even asking how I am, you think—"..., and ends on.
Chapter 251 is the strongest chapter-level answer because it starts from If Du Qinglian was somewhat angry just a moment ago, now she was simply at... and follows through on The moment the connection was successful, before even appearing on camera,....
If you want the clearest chapter reference, go to Chapter 230. Early on, Shang Shaojing's expression wasn't looking too good either.; later, the chapter leans on He had always been the winner in any field, and there had never been an....