Yaya's Favorite

Sometimes I fantasize about getting in these stories just to beat the f out of those annoying side guys. I don’t even want to be part of the main story, I would just be an omnipotent bodyguard. Invisible too.

I’m looking for this yaoi manga about this that fought and then the (seme) I believe loses his memory after falling. And when (uke) sees (seme’s) parents, he tells them not to tell him they were together and takes the ring of the (seme’s) finger. But then the (seme) gets attracted to (uke) again.