As I don't know the specific 'bella cancer fanfic', it's hard to say for sure. But presumably, Bella would be one of the main characters since she is in the title. There might also be her family members, like her parents or siblings, and perhaps her friends or a love interest who play important roles in the story.
Given that it's called 'bella cancer fanfic', Bella is likely the central character. In addition, if it follows the common patterns of stories about illness, there could be a doctor or a nurse character who is involved in her treatment and care. Also, her closest friend who provides emotional support could be another main character. There may be a character who represents the outside world's reaction to her illness, like a schoolmate or a neighbor.
Look to Chapter 62 for the clearest answer. It begins with Sitting on the edge of her bed, she pondered for a while before lifting..., keeps building through The moment the door opened, she saw her photographer with his hand still..., and lands on Jiang Li reached in, pulled out a piece of paper.
Look to Chapter 37 for the clearest answer. It begins with The barrage was suddenly filled with hahas, but the two guests present..., keeps building through He Yun spent most of her time filming movies, had no interest in variety..., and lands on I look forward to your guidance." He Yun nodded.
Chapter 66 is the strongest chapter-level answer because it starts from I can't take it anymore, why did the young master even find a pair of... and follows through on Unable to find a staff member to notify, and not wanting to waste time for....
Chapter 76 is the strongest chapter-level answer because it starts from Thinking of this, the aunt repeatedly praised, "Girl, hearing your words... and follows through on Soon, Shu Yan also couldn't hold out any longer, leaning against the tree....
The best chapter pointer here is Chapter 26, "Sending My Big Brother to a Transformation Variety Show". It opens with Shen Lan was bent over processing a large stack of press briefs on her... and closes on If you think you can use our family connection to have me handle this....
Look to Chapter 65 for the clearest answer. It begins with Several minutes later, the room remained silent., keeps building through The cameraman then discovered that Jiang Li's door wasn't properly shut,..., and lands on What's the deal with these two?.
If you want the clearest chapter reference, go to Chapter 34. Early on, Seeing that the public sentiment wasn't quite right, Su Yinwan felt...; later, the chapter leans on It was she who had anonymously paid someone to write the critical article....
Look to Chapter 26 for the clearest answer. It begins with Shen Lan was bent over processing a large stack of press briefs on her..., keeps building through She was nearly forty years old, but because she took good care of herself..., and lands on If you think you can use our family connection to.
If you want the clearest chapter reference, go to Chapter 31. Early on, Before Shen Lan had reached the backyard, she already heard the sounds of...; later, the chapter leans on Facing the freshly risen morning sun, she noticed at a glance the girl....