Persona 4 the Golden Animation: Thank you Mr. Accomplice
Genres: Adventure, Drama, Mystery, Supernatural
Type: Special, Episodes: 1
Aired: Dec 10, 2014
Studio: A-1 Pictures
Source: Game
Rating: PG-13 - Teens 13 or older
Synopsis:
After Yuu finds out the past and circumstances of Adachi, he makes a single decision in order to save him.

(Source: ANN)

This is an alternate ending to the Persona 4 The Golden Animation series.