A powerful, Zanpakuto-less Shinigami, Baishin, attacks the human world. Ichigo, Rukia, Renji, and Hitsugaya battle Baishin, with Ichigo ultimately defeating him using his Bankai. The OVA concludes with the Gotei 13 enjoying a human world vacation.
The Bleach OVA, "The Sealed Sword Frenzy," begins with a mysterious figure emerging from an exploding shrine where monks previously performed a sealing ritual. Meanwhile, Ichigo enjoys a quiet Sunday morning with Rukia and Kon until Yuzu reveals an attack on their father, Isshin. They discover the attacker is Renji, who explains an urgent mission from Soul Society. Before Renji can elaborate, Baishin attacks, severely injuring Ichigo. Hitsugaya intervenes, buying time while Urahara reveals Baishin is a Zanpakutō-less Shinigami, previously sealed away but now resurrected. Soul Society members (excluding Kenpachi and Yachiru due to navigational issues) arrive to assist. Ichigo, Rukia, and Renj...