Why does Lin San always follow Miss Er in Who's the Best?

I believe all my favorite friends will like Michael Chen's Lin San. He is optimistic, kind and intelligent, and also a sister-in-law. Lin San, whose real name is Lin Wanrong, was the director of a company before crossing. By chance, he accidentally traveled to ancient times, accidentally saved the Virgin in White, and was forced to be hunted down.

Xiao Yuruo, the kidnapped Miss Xiao's family, escaped to a remote place and was saved by chance, but was mistaken for a prostitute by Miss Xiao's family. After breaking up, she met Miss Xiao Jia Er Xiao, who was playing with a puppy, and then she followed Miss Xiao Er. Then, why does Lin San always follow the second lady?

Modern Lin San has a younger sister who looks like Miss Er. She was lovely and naive, and her sister died of illness. Recalling himself and her past, with curiosity and yearning for her, he decided to protect this little girl who looks like her, and it happened that Fu Lin was looking for a servant. In order to take care of and understand Miss Er, he changed his name to Lin San and was forced to work as a servant in Fu Xiao.

In the process of approaching the second young lady, he met with great obstacles. After making an enemy with Miss Xiao, Miss Xiao accidentally picked up the necklace, and she found a portrait of him and her sister Xiao on it. Xiao Yure thought that Lin San wanted to enter Fu Xiao's plot against Yu Shuang, so he made things difficult everywhere, but he never gave up.

After becoming an extremely bookish, he successfully approached Erxiaojie as an extremely bookish girl, always taking care of Erxiaojie, telling her jokes and bedtime stories, comforting her when she did something wrong, and helping her and her sister make up.

In the face of Miss Er Xiao Yu Shuang, Lin San is a real eldest sister-in-law.