The first time Song Yu met Shen Zhinian was in the alley.
The man saved him, put his school uniform on him, and gave him an orange candy.
In the sunlight, Song Yu saw the man's face clearly, and he looked exactly like him.
He secretly pulled out a piece of Shen Zhinian's hair and took a paternity test, but the results were not satisfactory.
Later, Shen Zhinian was transferred to their class, and the teacher asked Song Yu to teach Shen Zhinian math.
At school, he was Shen Zhinian's deskmate and math teacher.
Outside school, he is Shen Zhinian's best friend and companion.
But, why does Shen Zhinian always get angry every time he says the brown cat is fat?
Later, it was discovered that Song Yu was actually the real young master of the Shen family, while Shen Zhinian was the fake one.
Naturally, he changed his name from "Song Yu" to "Shen Zhiyu". Become Shen Zhinian's elder brother on the surface.
After confessing his love, he became Shen Zhinian's boyfriend and brother.
He originally wanted to be obedient all his life and not scare Shen Zhinian by showing his true nature.
But why would his Nian Nian want to leave him?
Purpose: Protect stray animals