If you’d like, I can instead:
If you own the Japanese version of Aikatsu! My No.1 Stage! and want to apply DLC to your backup via an emulator or CFW, you must follow the correct file structure. 1. Match the Region and Title ID
For those unfamiliar with Aikatsu!, it's a series that lets players take on the role of an idol, creating and managing their own character, performing on stage, and building a career in the entertainment industry. The My No.1 Stage DLC is a special add-on that allows players to create and customize their very own dream stage, complete with various settings, music, and effects.
content in dlc ➞ japan * Alternative Name: Aikatsu! - My nanbā 1 Stage! * ID: 21068. * Title ID: 0004008C00169D00. * Version: 0.0. アイカツ！ - My No.1 Stage! - hShop
