Overlooked lonely / black sheep of the family MC

Really in the mood to read a high angst contemporary romance about an MC who is very lonely/bullied and often forgotten about. For example, no one remembers his birthday, people forget he’s in the room, his achievements aren’t celebrated, parents favour his siblings and he’s just trying his best to survive.

MC2 notices him and gives him all his love MC1 forms new friendships/ found family.

Spicy content preferable too.

I have no triggers

Thanks!