Shijou Saikyou no Deshi Kenichi
Members score: 8.05
TV (50 eps)
Aired: Jan 08, 2006
Shijou Saikyou no Deshi Kenichi OVA
Members score: 7.88
OVA (11 eps)
Aired: Jan 14, 2012
Shijou Saikyou no Deshi Kenichi Specials
Members score: 7.25
Special (4 eps)
Aired: Jan 15, 2013