Where it was said that, the Kosuke's surname is Maruboshi and Tekuno's - Kanden??? Rudis (talk) 14:34, December 22, 2010 (UTC)

During the episode. One of them screams his full name when he starts fighting the Iwa jōnin. Kosuke's full name is said earlier in the episode, though I don't remember exactly when. Omnibender - Talk - Contributions 15:32, December 22, 2010 (UTC)