How to play Toaru Majutsu to Kagaku no Ensemble on Mac

Toaru Majutsu to Kagaku no Ensemble is a Japanese visual novel based on the Toaru Majutsu no Index universe. The game features four storylines from the Toaru Majutsu no Index main series, and the Toaru Kagaku no Railgun sidestories converging. Missions or quests can be accessed from the map, at the start of a new game, where the player can chose a place with some "event". The map encompasses of all Academy City. In the map, the player can view the character whom the event is about, its name, the place where it will occur, and the other characters the player will be accompanied by. Some events need to be unlocked first. The events that are depicted on the map changes depending on the time on the player's PSP.