Shingeki no Kyojin: Kuinaki Sentaku - Prologue (Official Colored)

Attack on Titan: No Regrets Complete Color Edition (12/19/2017) is a colorized two-volumes-in-one re-release of the Attack on Titan: No Regrets manga with art by Hikaru Suruga and story by Gun Snark (Nitroplus) and which includes new bonus material.

(Source: Anime News Network)