OVA
Description
Shinobibe Himiko leads as the 13th successor of the Shinobibe Ninja Clan and accompanies Wataru Ikusabe on his journey across Soukaizan from the first floor in the original series. She sports turquoise hair tied with a large pink ribbon, a noted charm point. Her deep pink ninja outfit features short sleeves, long pants, a white belt, white footwear, and gleams with golden shoulder pads and armbands crafted from dragon scales.

Her personality radiates boundless energy, fearlessness, and a consistently playful, innocent demeanor. Himiko maintains a hyperactive, optimistic outlook, constantly seeking fun interactions. A kunoichi prodigy, she demonstrates exceptional ninja abilities, including unconventional ninjutsu spells like "Himikomikomiko Himikomiko!" to summon various effects. She communicates fluently with animals and utilizes a "Bag of Holding" pouch containing tools, weapons, food, and miscellaneous items. Himiko frequently assigns creative nicknames to those she meets to aid her memory. Her prominent first-series catchphrase "Banzai! Banzai!" later evolves into expressions like "(Name), you're so awesome! (Name)'s Number 1!".

Himiko shows fierce loyalty to her friends; her usual cheerfulness shifts into seriousness or anger when they are threatened. She cried upon the deaths of Kurama and Toraoh in the first series and displayed specific fury over Toraoh's death. During a second-series Hidden Purpose Test, she confronts isolation and learns from her future self that transient fun cannot replace the enduring happiness of familial bonds and friendships. She also functions as a Morality Pet for Kurama and an emotional anchor for Toraoh. Her character design gains more expressive animation starting in the second series, enabling broader physical comedy and exaggerated expressions.

In combat, she often adopts a "Too Kinky to Torture" perspective, interpreting confrontations as playful engagements with "friends." Her medium awareness allows creative applications of the series' conventions, exemplified when she outperforms a rival ninja by transforming into Ryujinmaru's signature backdrop dragon during a competition.