Anima Gate of Memories: The Nameless Chronicles

Story Related, cannot be missed.

Shadow of The Nameless is the final boss of the Fragments from Other Lives location. To reach him you need to collect his memories, (they are not hidden, just explore the rooms), defeat trio of Shadows (see The Three Shadows) and in the Hall of the Forgotten Names complete at least three challenge rooms. Each room completed will raise a platform across the chasm and at the other end of the chasm is the coffin so interact with it to remember the Nameless's first name, then return to the Beach of Memories and interact with the grave. You will receive trophy after you defeat the boss.