Hey there, I saw some people wearing high qi items, but their belt / qi seems doesn't fulfill the requirement to use it. I wonder where do they got it? did they buy it with real money?

tia

You could buy them in the Market Squad section at a higher price.Not possible at this moment.

with tc?

Yes.

Or, you could ask an admin to make you a "No-Qi" item.
Although, don't even think about doing that.
Because they won't, and they will GRUDGE you for the rest of your toribash career.