Toshiwasure Guda Guda Order 2016
English title: Farewell to 2016 Guda Guda Order
Japanese title: 年忘れぐだぐだオーダー2016
Type: Special
Episodes: 1
Source: Game
Genres: Comedy
Studios: TROYCA
Producers: Studio Mausu
Duration: 6 min
Rating: PG-13 - Teens 13 or older

Oda Nobunaga will join the fight for "GUDAGUDA Honnouji" that suddenly appears at Chaldea! This event features an original story written by none other than the one with a super confusing pen name, Keikenti-san! Of course, the scenario was (basically not) supervised by Kinoko Nasu!

(Source: Fate/Grand Order Wiki)