Period Cube: Shackles of Amadeus

After completing the endings for a given character’s route, you will unlock a short ‘His Perspective’ story. These can be viewed from the ‘Album’ menu, under ‘Bonus’. There is one for each character, so you must earn all endings (The Truth Within Our Hearts) before you can earn this trophy.

After obtaining each ending, navigate to the Bonus menu. This trophy should unlock immediately afterward. You do not have to read each His Perspective story, just earn each one and look at the Bonus menu once you do.