The summary is:
A woman named Yun Xiangxiang pretends to be the daughter of the Yun Group and the fiancee of Fu Sihan, the vice president of the Fuji Group, to help him investigate the car accident that killed his father and crippled his brother. Along the way, she faces many obstacles and enemies, such as Qin Zhirou, Fu Rong, and Du Zihan, who want to sabotage their relationship and take over the Fuji Group. Yun Xiangxiang also has to deal with her own feelings for Fu Sihan, who initially hired her as a fake fiancee but gradually falls in love with her. The summary ends with their wedding and their grandfather's wish for them to have a grandson.
Here are the key facts extracted from the text:
1. Yin Xiangxiang is a cartoonist who works hard to create comics.
2. He is an 18th-tier kid and believes he will succeed one day.
3. Fu Sihan is the young son of the Fuji Group and is considered a dream lover by many young ladies.
4. Yin Xiangxiang used Fu Sihan as a prototype to create cartoons about girls and children.
5. The Fu family sued Yin Xiangxiang's company for reputation infringement.
6. Yin Xiangxiang's company is in financial trouble, and he owes his employees royalties.
7. Qin Zhirou is an actress who has been friends with Fu Sihan since childhood.
8. Fu Sihan is kind and perfect, unlike what Yin Xiangxiang imagined.
9. Qin Zhirou has been investigating Fu Sihan's signs for many years.
10. A woman named Na Luo claims to know Fu Sihan and wants to meet him.
11. Fu Sihan has a document that needs to be signed by someone.
12. Miss Yun is a woman who is being pursued by Fu Sihan.
13. Fu Sihan's family is wealthy and influential.
14. Fu Sihan was in a car accident seven years ago and was left in a wheelchair.
15. Fu Rong, Fu Sihan's sister, manipulated the brakes to cause the accident.
16. A person named Yang Shan has evidence of the car accident and has been in contact with Fu Sihan.
17. Fu Sihan has a copy of the driving recorder that recorded the accident.
18. Fu Rong is ambitious and wants to be the chairman of the Fuji Group.
19. Fu Sihan's father was killed in the car accident.
20. Fu Rong is taken away by the police for her crimes.
21. Fu Sihan and Miss Yun get married, and Fu Sihan's grandfather is happy.
Note that some of these facts may be revealed through conversations or dialogue, while others may be stated explicitly in the text.