Can someone help me?

I need help. I couldn’t find the name of a manga that I really like. The plot is an omegaverse, where the uke is an omega and a germaphobe, while the seme is an alpha is either a prince or a king of a kingdom. One distinctive scene in the manga is at the end where the alpha is in a helicopter going though an only omega place, they can freely elk around without worrying any alpha around, throwing out flowers to propose to the omega.