With Luxu disappearing, The Master of Masters appointed you to assume Luxu's role. As the newest Keyblade Master your role was to watch and observe from afar, only interfering when you deem it so

You saw that a meeting between the other Foretellers, Ava, Invi, Gula, Aced, and Ira, was happening again and decided to reveal your presence after two years of watching where no one saw

Upon your entrance, everyone looked at you confused. They knew who you were, but they didn't understand your two years absence