Cry of the Soul? The Rug Shinigami is Born!

When a Hollow slips loose in the Human World, Ikkaku Madarame and Yumichika Ayasegawa are dispatched to hunt it. Barred from staying at Ichigo's home, the pair end up boarding with Keigo Asano's sister Mizuho, who welcomes them eagerly to Keigo's dismay. Fantasizing about a life with Ikkaku, Mizuho smothers him with hearty breakfasts, matching couple's shirts, and constant interruptions, even barging in while he bathes, until he can barely focus on the mission.

Yumichika hits on a scheme to cool her affection: he fits Ikkaku with a short red wig and glues it firmly in place. Ikkaku chases him in a fury and runs into Ichigo's group, who howl with laughter at the disguise. Horrified by the new look, Mizuho abruptly turns cold, cutting the pair down to plain toast and no comforts, which finally drives them out.

That night the very Hollow they were sent to capture ambushes Keigo and Mizuho, seizing her as a hostage. Ikkaku and Yumichika track it down, but the wig glue has bonded Ikkaku's soul inside his Gigai, forcing him to tear himself free before dispatching the Hollow with his Shikai and saving Mizuho. She later recalls, as if from a dream, Ikkaku apologizing for the trouble. As the pair depart, Ikkaku pulls the wig off, only for a single stubborn strand to remain standing, sparking one more round of laughter at his expense.

A lighthearted, anime-only filler episode with no manga source and no formal arc, built around slapstick rather than plot. The comedic Shinigami Zanpakutō Introductions segment has Hitsugaya describe Mayuri's Ashisogi Jizō so well that Mayuri offers him a lollipop, which turns out to be apple-flavored poison candy that Hitsugaya declines.