It's a Yaoi Korean manhwa

Seme got in a a car accident together with his parents. He's the only one who survived in that accident and also lost his memories. Uke is friends with him and uke also has a grandma. Now, the both of them liked each other but because of memory loss the seme doesn't trust and dislikes uke. Uke is very poor he's often bullied by his friends since childhood because of his financial situation. Ps. It's not omegaverse.