"The delicate Lieutenant that does not seem as such from her appearance. She cannot sleep after getting a nightmare. Kamaboko ?" - picture caption by Tite Kubo [1] Isane Kotetsu (虎徹 勇音, Kotetsu Isane ) is the lieutenant of the 4th Division , the medical and supply relief division, in Gotei 13 under Captain Retsu Unohana . Isane Kotetsu Race Shinigami Birthday August 2 [1] Gender Female Height 187 cm (6'1½") [1] Weight 70 kg (154 lbs) [1] Professional Status Affiliation Gotei 13 , Soul Society Occupation Lieutenant of the 4th Division Team 4th Division Partner Retsu Unohana Base of Operations 4th Division HQ, Seireitei , Soul Society Personal Status Relatives Kiyone Kotetsu (Sister) Zanpakutō Shikai Itegumo Bankai None First Appearance Manga Debut Volume 13, Chapter 109 Anime Debut Episode 46 Video Game Debut Bleach: Soul Carnival 2 Voices Japanese Voice Yukana English Voice Stephanie Sheh Spanish Voice Dulce Guer