After graduating from the Kuwasawa Design School Mug laid down the foundations of her own brand in 1999 that has come to be known as G.V.G.V. (ジーヴィージーヴィー). Mug's world is represented by a mix of femininity and masculinity, with free sensitivity that is present in every season's collection. G.V.G.V. has now become one of the most attractive Tokyo fashion label. G.V.G.V. has also injected its creativity into other fashion brands through design collaborations. In collaborating with UNIQLO's designer's invitation for their 2007 spring and summer collection and also producing for UT, the T-shirt for concept of UNIQLO t-shirts from 2008 spring and summer.Also, from 2010 Spring/Summer, she has been participating as a buyer at grapevine by k3 Daikanyama, selecting wonderful creations from around the world.