Steven would be the main character as he's the one getting poofed. But depending on the context, the Crystal Gems - Garnet, Amethyst, and Pearl - would likely be important characters too. They would probably be involved in the aftermath of Steven getting poofed, either trying to revive him or dealing with the situation his poofing has caused.
Steven is the main focus since it's his poofing that the fanfiction is centered around. In addition to the expected characters from the source material like the Crystal Gems, there could be new characters introduced in the fanfiction. For example, a mysterious healer who might be the key to bringing Steven back. Or perhaps a character who witnessed Steven getting poofed and their actions are crucial to the story. So, it could be a mix of well - known characters and new ones created specifically for the fanfiction.
The best chapter pointer here is Chapter 37, "Those in the know anticipate the transformation, while the oblivious think it's a fashion show.". It opens with The barrage was suddenly filled with hahas, but the two guests present...
Chapter 837, "Why did she come?!", is the clearest early answer because it turns Shi Lei's situation into a concrete plot event. Early on, The ring is the one Shi Lei just gave her, she really likes it, so.... By the end, Thank you, Old Madam Gu." Then the Old Madam continued, "I know....
A practical answer is Chapter 34, because it turns the idea into a concrete scene. The chapter opens with Seeing that the public sentiment wasn't quite right, Su Yinwan felt..., adds pressure through Hurry up and start the live show, I can't wait to watch the universe's..., and ends on Now that.
A practical answer is Chapter 13, because it turns the idea into a concrete scene. The chapter opens with Sensing that something was off with Jiang Yan, Jiang Yan dismissed the..., adds pressure through He probably had a good guess who it was., and ends on How could this happen..." Lin Manru.
Chapter 818, "A New Village Amid Shadows and Brightness", is the clearest early answer because it turns Shadows's situation into a concrete plot event. It opens with Wanzhi stared in shock, her eyes wide open, "What you said...
A practical answer is Chapter 39, because it turns the idea into a concrete scene. The chapter opens with Qi Tianyu had been looking forward to watching Jiang Li's drama unfold., adds pressure through It's not by some great master, I copied it myself., and ends on His original intention was just.
If you want the clearest chapter reference, go to Chapter 42. Early on, You've all met now, so this game is very simple," Director Sun said.; later, the chapter leans on That is, give each of the other five people in the room a score based on....
Chapter 923, "Eight-legged essay?!", is the clearest early answer because it turns Rong Ya's situation into a concrete plot event. It opens with I just went to her house for a meal, even if my relationship with my...
A practical answer is Chapter 29, because it turns the idea into a concrete scene. The chapter opens with Big brother, it's me..." The shadow suddenly spoke and it was Jiang..., adds pressure through Learning from experience, Jiang Yan chose to stand next to Lin Manru this..., and ends on Big.
Chapter 874, "All the Same", is the clearest early answer because it turns Shuiyun Temple's situation into a concrete plot event. Early on, This family is surnamed Shi, and they have lived in this village for.... By the end, It might take a while to find them." "However..." she smiled, "I've....