Artwork: You may not copy or use any game assets, including but not limited to character and event graphics, for use in your own works. This includes both digital assets and physical ones, eg. designs and artwork from official CDs. However, you may create your own artwork based on the game if you wish, as long as you’re not tracing any of the aforementioned assets.
Music: You may not use any of the music or sound effects included in the Arcaea app or on any of its official soundtracks for any purpose, including derivative works. This includes fanmade charts and levels for rhythm games.