The weekly update for Final Fantasy: Brave Exvius has added new Final Fantasy X units to the mobile gacha game. New Guardian Tidus and Besaid Mage Lulu can now be acquired, and each character is a Neo Vision unit, the highest rank in the game. Neo Vision units typically have the best stats and abilities, but leveling them up to their maximum ranking requires a lot of effort.
The end result is worth it though, as fully powered-up Neo Vision unit can become a crucial member of a party and invaluable for high-end activities in Final Fantasy: Brave Exvius.