A Clueless Officer Dad and a Sweet Young Lady Mom, Saved by Their Kid

Ning Meng transmigrates into a book as a supporting female character who only survives for one chapter.

The female lead, Lin Xue, is sent to the countryside. She recognizes Ning Meng's parents in the cowshed and secretly looks after them.

Ning Meng's fiance marries Lin Xue.

Lin Xue gets divorced and marries Ning Meng's older brother...

Since I've ended up here... I'll take the female lead's pocket dimension first.