Available for download from Pokeytax’s project page, the translation patch continues his work on the series, which started with the original DS 7th Dragon in April of 2014.
7th Dragon 2020 is a more streamlined version of the original 7th Dragon with a more limited number of classes than the original. One popular addition, however, is the first appearance of Hatsune Miku in the series. She can be met during a mission that charges the player with saving her from a dragon. Upon completion of that mission, she unlocks the option to change all of the game’s background music into remixed tracks sung by the vocaloid herself.
Further details can be read on the translation projects Romhacking.net page.