Dark History! The Worst Shinigami is Born

'''Dark History! The Worst Shinigami is Born''' is the two hundred and fifty-first episode of the Bleach anime.

Statistics

 * Original Airdate: December 22nd, 2009
 * English Airdate:
 * Opening Song: Anima Rossa
 * Ending Song: Sakurabito
 * Manga Chapters: None
 * Kanji: 闇の歴史！最凶の死神、誕生
 * Romaji: "Yami no rekishi! Saikyō no shinigami, tanjō"
 * Arc: Zanpakutō Unknown Tales arc

Synopsis
The 3 elites are gloating over their success when Kōga and Muramasa appear. Kōga kills them, and Ginrei is informed. Muramasa talks to Kōga to try and help him over his anger, but they are found by Ginrei. He inform Kōga the likely sentence for killing the Elites is execution, and Kōga goes insane. Muramasa tries to possess Ginrei’s Zanpakutō, but phases through Ginrei. Kōga removes his hairpiece, and departs. He then goes on a killing spree. Muramasa tries to reason with him but fails, lamenting that he can’t hear Kōga anymore. Yamamoto is informed of what’s going on, and Ginrei tells them how to resist Muramasa’s power, and Yamamoto volunteers to help. Kōga rants at Muramasa and threatens him. He meets Ginrei and Yamamoto for a showdown. He tries to use Muramasa on them, but he won’t release. They use this opportunity to arm with the spears used to seal Kōga’s coffin. These immobilise his limbs, allowing Yamamoto to use Kidō to imprison him. Back in the present, Kōga thinks Muramasa betrayed him, but Muramasa claims he never heard him. Kōga removes his blade from Muramasa, and tries to kill him, but Byakuya blocks the blow and challenges him.

Shinigami Illustrated Picture Book
Genrei tells a young Byakuya about the Kenseikan that the high-ranking nobles wear. When Byakuya asks Genrei where he wears his kenseikan, Genrei leaves him.

Characters in Order of Appearance

 * 3 Shinigami Elites
 * Kōga Kuchiki
 * Muramasa
 * Ginrei Kuchiki
 * Ginrei Kuchiki’s daughter
 * Ichigo Kurosaki
 * Rukia Kuchiki
 * Byakuya Kuchiki

Powers and Techniques used
Zanpakuto released

Shikai
 * Muramasa

Kidō
 * Bakudō #4
 * (Yamamoto's Sealing Kidō)

Other Powers
 * Ginrei’s phasing technique