Since I haven't read it, I can't say for sure. But it's likely that the dragon - turned - slime is one of the main characters. There might also be a wizard or a mage who either caused the transformation or tries to reverse it.
I'm not familiar with this specific light novel, but usually in a story like this, aside from the dragon - slime itself, there could be other magical creatures. Maybe there's a friendly fairy who helps the dragon - slime on its journey. Or perhaps there's an antagonist, like an evil sorcerer who wants to use the dragon - slime for his own dark purposes.
There could be a whole host of characters in the 'dragon turns into a slime light novel'. The main character would likely be the dragon that experiences the transformation. There may be other characters like a mentor figure, perhaps an old dragon who has some knowledge about this strange transformation. And there could be a human character, maybe a knight or a healer, who gets involved in the dragon - slime's story either by accident or because they have their own reasons to be interested in this magical event.
The best chapter pointer here is Chapter 28, "Beaten Up Again". It opens with The next evening, Jiang Yan drove home seething with rage. and closes on Lili then kicked his knee hard..
The best chapter pointer here is Chapter 52, "Your Child is in Danger Now". It opens with The village chief and the woman behind him exchanged a glance, "This... and closes on And at this point, they might as well try a desperate remedy for a....
If you want the clearest chapter reference, go to Chapter 16. Early on, Just as the words fell, Jiang Shixu swiftly cast his eyes downward.; later, the chapter leans on His eyelashes were very long; when they fell, they could cast a small....
The best chapter pointer here is Chapter 22, "Number 7203". It opens with Hearing this, Su Yinwan looked at Shang Shaojing with a face full of... and closes on Jiang Li's righteousness temporarily shut Jiang Yan up, but after a few....
Chapter 3 is the strongest chapter-level answer because it starts from Qiao was still annoyed at the attitude of this unknown girl when she heard... and follows through on Jiang Yan, forced into a marriage with someone he did not love, had....
A practical answer is Chapter 24, because it turns the idea into a concrete scene. The chapter opens with Not only that, even the non-mainstream photos she had previously posted on..., adds pressure through Just because of his arrival, both were severely affected by public..., and ends on Shi Xu.
If you want the clearest chapter reference, go to Chapter 10. Early on, Qiao's shocked face struggle to recover, Lin Manru also tasted for the...; later, the chapter leans on Jiang Li nodded with a smile, seemingly approving of Lin Manru's words and....
Chapter 919, "Two More Grandsons", is the clearest early answer because it turns Wan Huixia's situation into a concrete plot event.
A practical answer is Chapter 28, because it turns the idea into a concrete scene. The chapter opens with The next evening, Jiang Yan drove home seething with rage., adds pressure through Fuck, who's there, standing in the middle of the night scaring the shit..., and ends on Lili then kicked his.
Chapter 14 is the strongest chapter-level answer because it starts from Lin Manru had a rare good night's sleep. and follows through on But clearly, Lin Manru was unable to accept that her delicate daughter had....