I checked EULA. Personal model is for non commercial thing.
So I bought business model without exchange mail.
It's almost same price and supports 5 pc while personal is just 1pc.
MS people may come to my office to check license in the future. I should consider bad situation.
Bad thing is onedrive for business.

It's terrible for personal use. Camera upload and selective sync feature are not available.
The reason that I wanted personal model is onedrive.

I want cheap 1TB cloud storage for personal and business.
Only onedrive can me happy but ODFB is not.