[m]I think it was an omegaverse manhwa. The main character which is an alpha really hates omega. Then the family (rich family) hired for him a maid with no gender. (the maid is a guy , what I mean no gender is the person is not an omega, alpha or beta) the brother of the rich guy always harrassed the maid. The alpha guy is so cold, really hard to approach. But when they were finally get to talk, it turns out that the maid is actually an omega. He never knew he was an omega because it was confirmed that he has no gender. That all I remember 😢 anyone pls help me.

Sounds like secret note (Akuta) but this ones a manga.

😳 Omg this is it 🤣. Thank youu I thought it was a manhwa but turns out to be manga. Arigatou 🙆🙆. You're a big help