One possible plot could be that it's part of a prank by the kids. They might be playing a game like 'hostage' and they use soft ropes or scarves to tie mom to the bed in a pretend scenario, and then they have to negotiate with dad or other family members to 'free' her.
Perhaps in a mystery story, a villain ties mom to the bed to keep her from interfering while they search the house for a hidden treasure or important document. Mom then has to figure out a way to free herself or signal for help. She might use her wits to untie the knots with a nearby object or make noise to attract the neighbors.
In a more comical and supernatural setting, mom could be tied to the bed by a mischievous ghost. The family has just moved into a new, supposedly haunted house. The ghost thinks it's funny to play tricks on the new residents. Mom starts out scared but then realizes the ghost is more of a nuisance than a threat. She tries to communicate with it to get it to untie her, and in the process, they become friends of sorts and the ghost stops its naughty behavior.
If you want the clearest chapter reference, go to Chapter 131. Early on, Just around mealtime, Director Sun came over pushing his small food cart.; later, the chapter leans on There was a loudspeaker tied to the top of the cart, which was....
Look to Chapter 105 for the clearest answer. It begins with But this did not elicit any sympathy from the woman on the phone; on the..., keeps building through Do you know why you haven't been getting good roles or making money these..., and lands on However, the next second, things took a turn..
A practical answer is Chapter 114, because it turns the idea into a concrete scene. The chapter opens with As time passed, the number of viewers in the live broadcast gradually..., adds pressure through I've never seen someone so shamelessly clingy!], and ends on But just now, an uncle came and.
Look to Chapter 105 for the clearest answer. It begins with But this did not elicit any sympathy from the woman on the phone; on the..., keeps building through Do you know why you haven't been getting good roles or making money these..., and lands on However, the next second, things took a turn..
Chapter 118 is the strongest chapter-level answer because it starts from At 8 in the morning, several guests appeared on time next to the... and follows through on Hearing this, both Jiang Yan and Shu Yan started to complain as well..
Look to Chapter 149 for the clearest answer. It begins with Seeing that Zhang Cheng's glass was nearly empty, Du Qinglian immediately..., keeps building through Director Zhang, this Zuichun Mountain is a specialty of Bi Garden, brewed..., and lands on Zhang, I introduced myself at the very.
Chapter 144 is the strongest chapter-level answer because it starts from Ordinary people would have been at a loss in this situation by now. and follows through on He then noticed the hand—fair and slender, not at all like an auntie's..
Chapter 117 is the strongest chapter-level answer because it starts from Fragrant and cloyingly sweet potatoes and corn were out of the pot, and Qi... and follows through on Since entering puberty, his mother had exerted strict control over his....
Chapter 156 is the strongest chapter-level answer because it starts from Flash Change, who was always tardy, was late again today. and follows through on Soon after, the meditative He Yun also walked over..
If you want the clearest chapter reference, go to Chapter 81. Early on, Qi Tianyu, who chose curry beef rice, received a piece of curry and a...; later, the chapter leans on Shu Yan was relatively lucky, she got a bundle of noodles and a bag of....