please help me find this yaoi manga.

I want to re-read this yaoi manga, but I can't find the title. here the story : the uke is a salesman who looking for Sake, and there is some sake shop which is really really famous because of the taste, but the owner is so stubborn and he don't want to sell his sake to that uke, and the uke visit the owner everyday, and then he meet the owner grandson, later will be the seme. the seme looks really cool, and have a part time job as IT (maybe, related to computer). and the seme work for the uke company, and and and and the love is blooming.

Any clue?
Thank you for your help, and sorry for broken English