M size Unopened This is an immediately sold-out item released by PIZZAOFDEATH. This is a collaboration between the M League (professional mahjong league) team TEAM RAIDEN/RAIDEN member Masato Hagiwara and Ken Yokoyama's Hagiwara Juku Yokoyama Mahjong Laboratory, and PIZZAOFDEATH. PIZZAOFDEATH Pizza of Death kenyokoyama Ken Yokoyama Hi-STANDARD Masato Hagiwara TEAMRAIDEN Team Raiden