Canis: Dear Hatter, Volume 1 (manga)

After taking him in on that rainy day, the mysterious Ryo now lives with the mad hatter, Kutsuna. With his stellar staff's help, business has been booming. However, one fateful day, Kutsuna's rival and long-time friend Gotou informs him that he has been entered into New York Fashion Week. Initially Kutsuna was hesitant to travel, but over time he steels his resolve. Once in New York, Kutsuna encounters some of Ryou old acquaintances...