Y/n just finish Batman AK 240% finish every DLC , and unlock all of the Trophys and the AR Stages when his friend calls him saying lets hangout try to beat Top leads in Arkham Knight Leaderboard at his friend place he packs his ps4 (or ps5) during his journey a misterieous blue portal sucks him inside the moment he open his eyes he met Robin aka Damian Wayne and Batman aka Bruce Wayne himself and Batman saw the Disc case......uh oh