The main characters could be a group of children playing in the snow on Christmas. One of them could be the one with the frozen tongue. There might also be an old wise character, like an elderly person in the neighborhood who has lived through many Christmases and gives advice on how to deal with the frozen tongue. This person could add an element of wisdom and tradition to the story, while the children bring the energy and naivete of youth.
I don't know the exact main characters in this 'frozen tongue christmas story' as I haven't read it. It could be a young boy or girl who is the main character.
Since it's a Christmas story, there might be a family involved. So the main characters could be a family member, like a father, mother, or a child who has the frozen tongue incident. There could also be a friendly neighbor who comes to help when they find out about the situation.
The best chapter pointer here is Chapter 121, "Jiang Li Gains 5 Points for His Meritorious Rescue!". It opens with Seeing that Wen Jiaojiao's condition had improved significantly, Director... and closes on You're supposed to be a man who conquers mountains!] Experienced and....
The best chapter pointer here is Chapter 176, "Su Yinwan: I Have a Stronger Taste". It opens with Shang Shaojing didn't suspect anything and popped the greens into his... and closes on Everyone intentionally avoided that plate of ugly-looking but darkly....
A practical answer is Chapter 158, because it turns the idea into a concrete scene. The chapter opens with Reluctantly, Jiang Yan had no choice but to forcibly join the group for..., adds pressure through Don't make me laugh, Jiang Li looks better even without makeup than she..., and ends on we're.
A practical answer is Chapter 138, because it turns the idea into a concrete scene. The chapter opens with Is there such a good deal?, adds pressure through From now on, let's get to know each other again." "I'm Wen Jiaojiao,..., and ends on Could it be that the poison also had a side effect of.
A practical answer is Chapter 120, because it turns the idea into a concrete scene. The chapter opens with Facing the sudden and somewhat strange request from Jiang Li, Director Sun..., adds pressure through Netizen: Wen Jiaojiao had been acting for years without much fame, but now..., and ends on.
Chapter 180 is the strongest chapter-level answer because it starts from In the end, everyone received gifts that were completely opposite to what... and follows through on she simply didn't want to associate with the so-called protagonist of the....
A practical answer is Chapter 124, because it turns the idea into a concrete scene. The chapter opens with Since there were too many points cards inside Jiang Li's barrel, Director..., adds pressure through Always so impolite to Director Sun, that's a bit too much.], and ends on No need to repeat.
A practical answer is Chapter 157, because it turns the idea into a concrete scene. The chapter opens with It was already the last day of Flash Change in his dream., adds pressure through So he was being coerced into compliance?, and ends on I'm laughing myself crazy, do actors all have such.
A practical answer is Chapter 124, because it turns the idea into a concrete scene. The chapter opens with Since there were too many points cards inside Jiang Li's barrel, Director..., adds pressure through Always so impolite to Director Sun, that's a bit too much.], and ends on No need to repeat.
If you want the clearest chapter reference, go to Chapter 136. Early on, A few people retraced their steps back to the place they had just been.; later, the chapter leans on They continued straight up the mountain path until the trees became denser....