Swimsuit version of [[katsushika hokusai (fate)|Katsushika Hokusai]], though technically it is Katsushika Oui wearing the swimsuit. [[tokitarou (fate)|Tokitarou]] consistently remains the same, wearing swimming goggles and having long tentacles on the sides of his head. Her Noble Phantasm is "Shokoku Taki-meguri", a consecutive attack set against the backdrop of multiple paintings of waterfalls.

Carries three katana, and one western sword, which Oui and her father wield with great proficiency. Personality-wise, this is Oui during her youth, where she enjoyed reading yomihon and dreaming of being a sword-wielding heroine.

Obtainable as a welfare servant during the Las Vegas Championship event.

[b]Character Design:[/b] [[Kuroboshi Kouhaku]]
[b]Voice Actress:[/b] [[Yukana]] (Katsushika Oui)
葛飾北斎(水着)