史上最強の弟子 ケンイチ OVA 付き特別版

Kenichi Shirahama trains at Ryouzanpaku, the dojo where Miu Furinji's grandfather Hayato keeps six masters under one roof and each of them takes a turn on him - Akisame's jujutsu, Apachai's muay thai, Sakaki's karate, Kensei's Chinese kenpo. These four short specials were bonuses on the OVA DVD volumes and sketch what daily life at the dojo actually looks like rather than pushing the fight against Yami forward.