We chose this format because we saw that there was a real opportunity for storytelling in this market. People often cite "the story" as their reason for playing, so we decided to double down on that. We also saw that many games were being unfair in their monetization and wanted to change that. A Gacha game allows everyone to play the entirety of the story content and events without paying a cent, but also allows us to continue developing the game. Finally it lets us add a whole bunch of cool characters and stories over time, which we couldn't do in a normal RPG format.