Tadashi Yamaguchi

__Team:__ Karasuno High __Height:__ 179.5 cm __Year:__ 1st year, class 4 __Number:__ 12 __Position:__ Middle Blocker Yamaguchi always hangs out with Tsukishima and is very protective of him. He has trained himself hard to use a jump float serve. He is also a substitute ace server of the Karasuno Volleyball team.