Wait wait wait. The top was inside an actual kid??
Some things are different but it kinda sounds like https://www.mangago.zone/read-manga/sayonara_alpha/
Non refundable Alpha? Idk they're not in college I think but the omega isn't in denial of being an omega. The similar is the blonde is the alpha and black haired is the bott
But in the backstory when they were younger, i think bott was expecting to be alpha?? But it didn't happen, the alpha is younger and hasn't manifested that time
I remember finding this one BL it was omega verse, but the top was just blonde short haired kid. He was in an actual kid. They were like college students and the bottom I think he was a black haired party boy type in denial of his second gender Omega, but I can’t find it cause there was only like one chapter and I forgot to save it to my timeline. I don’t remember the name. I just know it was like one of those tropes where it’s like instead of like the tall character being the top he was actually the bottom and I know that it was omega verse and it’s only like the starter chapter like the trailer. I can’t find it and I need help.