Blueperiod

Can you guys help me find this one bl manga? It’s not a newer one, but ik it’s not really old… It’s an omega verse and it has something to do with the bottom lost his older brother in a wreck that kinda had to do with him, and the older brother was an alpha pretending to date a girl for the parents when he was actually dating a boy. Also the older brothers friend, I think, kinda blames the bottom for the brothers death. One last thing the bottom isn’t affected by any other alpha’s like smell… idk.
But please help me!!! I’ve been looking for it since like forever!

I’ve been trying to look for this one Bl manga where the main character was studying to become a teacher but failed the exams so he we t back to his hometown and met his childhood friends.