As the name suggests, Koga's popular series ``Hooyoroi Hai'' is a unique sake cup that imitates a piece of armor that completely covers the body from the tip of the chin to the cheek, making it appear as if one is wearing armor when drinking sake.
The motif is a piece of armor known as a ``kawari kabuto,'' which has a unique and unique design and is said to have been worn by warlords from the Sengoku period. Koga was inspired to create this work because he was impressed by the way these men risked their lives on the battlefield, but also competed for their unique beauty.

Koga calls the modern age, where the development of SNS has made it possible for everyone to have a voice, an era of inferiority. ``If you have the will and determination to pioneer the times, you can rise to the top regardless of your origins.'' Koga continues to send encouragement to today's high-minded military commanders by creating the Cheek Armor Cup.

This work is based on the theme of Takeda Shingen, a representative of the legendary Sengoku period warlord, and is characterized by the menacing tiger's mouth, which was inspired by his nickname ``Tiger of Kai.'' It is paired with a work based on Uesugi Kenshin, who is nicknamed the ``Echigo Dragon.''
The black gold color, reminiscent of the original tiger, and the countless studs give this work an even stronger and sharper impression.