bounenkai is a year-end party. In Japan, companies, peoples, friends are having this kind of party here or there. Actually, It's just a drinking. I had dinner with some friends in my neighborhood and we opened 4 bottle of wine. I liked all wines. Especially, Champagne(De sousa) and Nuits Saint Georges(Clos des argillieres 2003, made by Frederic Cossard) were nice for me.