Zangetsu Becomes an Enemy

Zangetsu Becomes an Enemy is the two-hundred thirty-third episode of the Bleach anime.

Statistics

 * Original Airdate: August 18, 2009
 * English Airdate:
 * Opening Song: Shōjo S
 * Ending Song: Mad Surfer
 * Manga Chapters: None
 * Kanji: 敵となった斬月
 * Romaji: "Teki to natta Zangetsu"
 * Arc: Zanpakutō Unknown Tales arc

Summary
Ichigo Kurosaki is confronted by Muramasa and the latter "frees" Ichigo's Zanpakutō from him. Zangetsu fights Ichigo but as the fight continues, his Hollow self takes over. Meanwhile, at the 4th Division's headquarters, Retsu Unohana is informed of the 12th Division's findings.