Cheek Armor Cup, Gan Form, Rivets, Black Gold

Koga's signature work, the Hoyoroi Sake Cup series, a vessel meant to be worn.
The tea ceremony, a comprehensive Japanese art that developed as a cultivation of the samurai class. Sake vessels developed in that same lineage, as vessels for kaiseki cuisine. This work weaves together the histories of the tea ceremony, Sengoku warlords, and craft, expressing them as art.
Koga sees the present as an age of gekokujo (the low overthrowing the high). Even in an uncertain era, he believes that with the will and resolve to open up the times, one can rise to prominence regardless of origin. Taking as its motif the intimidating hoate (cheek armor) worn by Warring States warlords, this piece expresses the human way of life and spirit. It carries encouragement for today's high-minded warriors.