Exist Archive: The Other Side of the Sky

Unlock Extra Characters:
Complete the following tasks to unlock the corresponding character.

Kagato:
Complete the extra dungeon Protolexa: Depths 'Perhaps They Are...' 3 times.

Rejected Kanata:
Complete the extra dungeon Protolexa: Depths 'Perhaps They Are...' 4 times

Rejected Ranze:
Complete the extra dungeon Protolexa: Depths 'Perhaps They Are...' 4 times.