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So I read this long back, I forgot the name but I still remember some gists of the story,it is a short bl only a few chapters based on University bl there are two Guys one is Gay and another one is straight , the straight is athlete he plays basketball or something, he has orange hair I think they suddenly kiss And Then he fell for him
So I remember these scenes from the story
S1: They go for a car ride, they stopped in the bridge it was Sunset time and the straight guy confess to the other one and they kiss And make up.
Another scene, they make out while in that process the straight one wears the lingerie of his ex (the same lingerie made a disputes between them before it belongs to the MCs ex girlfriend)
If someone have read something please help me find this

Looking for a manhwa. A poor orphan girl (around 12–14) lives on the streets with two brothers. The younger brother dies from illness, and the older brother sells her because she has a rare trait connected to the royal family (possibly eye color). The real princess recently died in a carriage accident, and an adult black-haired prince/noble buys the girl to replace her. The girl knows she’s a fake princess from the beginning and is trained to act like the dead princess. The crown prince is the princess’s younger brother and is bratty because everyone prefers his older half-brother. Later the fake princess saves the crown prince after they fall into a pit together.