When I was eighteen
It was the first year when Yu Nuo first met Jianghuai
It was also the most ridiculous year
Estrus comes unexpectedly
Just like Jiang Huai broke into his world
He's struggling with estrus
But his brother-in-law said to him
Nono, I am your only choice
1: The three views are very correct. There will be an explanation for the fake marriage between the sister and the brother-in-law, and the sister will make it happen.
2: ABO, soft acceptance
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.