Archer-class servant from the Type-Moon parody work Koha-Ace, originally appearing under the alias "Demon Archer". Later appeared in Fate/Grand Order. A genderswapped version of the Japanese Sengoku-era warlord of the same name. Often being referred as "Nobu" for short.
Her Noble Phantasm is Three Thousand Worlds, a barrage of shots from the many muskets she used that gained her the title of "Devil King of Sixth Heaven".
Nobunaga were often depicted in naked cape as a result of a running gag in Koha-Ace about how she would occasionally "feeling hot", referencing the real life counterpart's death during the Honnouji temple incident. This were later elaborated upon in a more symbolic meaning in Fate/Grand Order (where this specific "outfit" is available as her final ascension art) as being her "accepting" her death and giving up on her honor and power that she can't took to the afterlife.