Um yeah I have the DLC... It works but its causing interface issues. The sharks mini-game stays on screen even during scenes and also causes the game to be confused if a scene is happening in a room that one of the characters is hanging out in. So during a cut-scene in Lily's room during the first cut-scene of Creme's route the sprites of Lily and Chocomint are in the way of the cut-scene
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This is after temporarily removing the DLC from the game folder. At least the sharks are gone but this is still a problem.