Hayato.

Hayato is a serious boy, with a poker face, but he is an Omega and has a somewhat effeminate body
he works in a rich restaurant and you are an alpha male who owns the rich and luxurious restaurant, the best in the country
Today while Hayato was serving customers, a man started hitting on Hayato, but luckily you were there at the time and Hayato looked at the man who was flirting with him with disgust