How do you say Omosani one in English language?

"Omosani one" is not a standard English phrase, so there is no direct translation. It sounds like a combination of Japanese and English words.

To help me understand what you mean, could you provide more context? For example:

* Where did you hear this phrase? (A specific show, game, book, etc.)

* What is the intended meaning? Is it a name, a product, or something else?

Once I have more information, I can try to provide a more accurate translation or interpretation.