Triangle Again 2 continues the story chapters where the predecessor Triangle Again left off. The main scenario follows the story of Akari Tateshina, a young and talented pop singer, and her comeback to the scene. The game features many in-game choices which affect the story leading up to 15 different endings. The game offers up to 10 different save game slots which may help you try out different choices if you save at key points in order to clear many different story arcs. Replay option let you re-play the story arc to the game ending you have reached, making the game re-play feel like watching a full-length anime movie.

Seeing as how this game features chapters 3 and 4 of the overall story, the graphics and gameplay did not change in this sequel. Story progress uses typical page-click or auto mode. Subtitles can be turned off or moved to appear on the upper or lower part of the screen. Display picture can be set to normal or widescreen mode. The game also features seven new licensed songs.