Shizukesa Kossori, meaning Stealthily Silent, is a mute male character in the franchise, TN:COT. They join a team alongside Mech-1 and Adam Campbell during one of the story lines as a test for their survival. Kossori is of unknown age but has the body/size of a young adult likely early 20s. They are exceptionally skilled in close quarters combat, specifically with knives and fists, and can easily take down a CU-1, [Short for Clockwork Unit 1], simply using his hands.

(Fight with CU-1 shown top right part of image)