Su Rui traveled through time.
He traveled through time and became the older brother of someone who is extremely possessive.
Then he accidentally fell in love with Mr. Gu, who had a knife hidden in his smile.
Su Rui looked at the sky and clasped his fingers, wondering who he would "favor" tonight.
This article one vs one.
Personally, I feel that there is no room for a third party in love.
Alas, another one who gave up.