Nanafushi is a supporting character in the anime Himawari Too!!, the second season of the Himawari! series. He is a male ninja with mint-green hair and petrol-colored eyes. His background is not extensively detailed, but his first encounter with the kunoichi Shikimi occurs when she discovers him at the bottom of a mountain pit, immobilized by a leg injury. After she helps him, the two develop a good rapport, which other characters sometimes misinterpret as romantic interest. In reality, they maintain a casual friendship with limited contact, and Nanafushi makes occasional appearances during moments of need.

Nanafushi is portrayed as a sincere and selfless young man with a strong sense of justice. This stands out even among ninjas, who are often associated with trickery and cunning. His motivations are driven by a desire to help others when they are in trouble, and he does not seek recognition or close involvement in the daily affairs of the main group. His role in the story is that of a reliable ally who appears at critical junctures to offer assistance, but he otherwise remains a peripheral figure.

In terms of development, Nanafushi does not undergo a major personal arc across the series; his character remains consistent as a calm, dependable presence. His key relationship is with Shikimi, built on mutual respect and a shared understanding that their bond is one of friendship rather than romance. Through this connection, he is loosely linked to the broader cast. As a ninja, Nanafushi possesses the typical skills of his profession, including agility, stealth, and combat ability, though no unique or named techniques are highlighted in the series. His strength lies in his reliability and moral integrity rather than flashy abilities.