Imprisonment?! Senbonzakura & Zabimaru

 is the two hundred and sixty-third episode of the Bleach anime.

Zabimaru and Senbonzakura become trapped in the Shinigami Research and Development Institute.

Summary
Several members of the 6th Division are chasing a hammer-wielding Tōjū through the streets of the Seireitei. As he loses them by ducking into a large urn, Saru and Hebi, spotting him, bring him down. While the Shinigami praise them, the Tōjū, recovering, traps them in a pile of dirt. As the Tōjū, defeating the Shinigami, prepares to hit Zabimaru, Senbonzakura, arriving, dispatches it, saving them.

A little later, fed up with being constantly compared to Senbonzakura, Saru and Hebi head off to deliver a broken Tōjū to the Shinigami Research and Development Institute, though Lieutenant Renji Abarai wants them to be writing apology letters for the damages they tend to cause. Upon arriving, they find the place deserted, the entire staff having gone on a field trip. Breaking inside by muscling the bars of a window open, they encounter Senbonzakura, also delivering a Tōjū which broke in through the door, leaving a gaping hole in it. Walking together into the Tōjū confinement facility within the lab they find an empty container into which they insert the Tōjū brought by Saru and Hebi. Senbonzakura begins to toy with the device's remote, which, triggering the alarm, drops a large fortified glass barricade over them.

As Senbonzakura attempts to break the case with his Shikai, but fails, Saru tells him they are just going to have to wait until the members of the 12th Division return. Agreeing, Senbonzakura, losing his patience, begins to throw a fit inside the barricade. As Saru and Hebi try to hold him back, a door opens as Ashisogi Jizō floats into the room. When Senbonzakura and Saru try to get him to set them free, Ashisogi Jizō exerts too much strength while pushing the button and breaks the remote. In his rage, Senbonzakura frightens Ashisogi Jizō away.

Unable to stand the wait any longer, Senbonzakura, activating his Bankai, breaks the barricade open, destroying the entire confinement area along with it. As the security system meant to contain the Tōjū is triggered, the three, outrunning the closing doors, arrive at a surveillance room through which the 12th Division monitors the private lives of everyone in the Seireitei, like Lieutenant Izuru Kira using the urinal, Lieutenant Shūhei Hisagi and Kazeshini cooking, Lieutenant Marechiyo Ōmaeda and Gegetsuburi grilling some food, Renji taking a bath, and Lieutenant Rangiku Matsumoto and Haineko running on the treadmill. Senbonzakura begins pressing buttons at random, causing minor disasters across Seireitei. While Senbonzakura argues with Saru, Ashisogi Jizō appears at the door in Bankai form.

As Saru and Hebi retreat from Konjiki Ashisogi Jizō's path, Senbonzakura stands his ground, saying he accepts the latter's challenge, and releases his own Bankai. Angered by Senbonzakura's irresponsible behavior, Saru and Hebi, releasing their own Bankai, break up the fight between the two spirits by using Hikotsu Taihō. The attack misses Senbonzakura, who moves away, but hits Ashisogi Jizō, effectively ending the fight. It destroys the R&D Institution, and the entire affair is attributed to Saru and Hebi's recklessness when the entire Gotei 13 shows up. Upon thinking about it, Saru and Hebi realizes they have no evidence to prove Senbonzakura was the real culprit.

Enraged at what happened, Renji, confining them to the barracks, assigns hundreds of apology forms for them to sign to keep them out of trouble. As Captains Shunsui Kyōraku and Jūshirō Ukitake arrive with more forms, Saru and Hebi wonder how Senbonzakura can be so different from his master, but Shunsui and Ukitake say he actually reflects Captain Byakuya Kuchiki's true nature very well. When they are told Senbonzakura is leading the search after a new Tōjū, Saru and Hebi set off to protect Seireitei from him, despite their master's protest. Returning, Captain Mayuri Kurotsuchi is shocked to find the R&D Institution in ruins and Ashisogi Jizō still unconscious.

Shinigami Illustrated Picture Book
Dressed in his new costume designed by Uryū Ishida, Lieutenant Chōjirō Sasakibe arrives just in time to save Seireitei from the Tentacle Tōjū. As the relieved Shinigami thank the mysterious stranger, Uryū states his project was a success, but Ichigo Kurosaki points out the Shinigami do not know the identity of the masked man who saved them, leaving Chōjirō in the shadow once more.

Powers and Techniques Used
Techniques used

Zanpakutō released

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