PRECIS-To unlock her is simple Go to Linga trigger a cutscene then private actionSave before private action because it is quite long

BOWMAN- PRECIS must not be in your party Same place but without private actionHe will request to join your team

LEON- During your storyline he will join you for a while for HOFFMAN RUINS After the Laucer Hope crash he will join you

ERNEST- You must have OPERA in your team After taking the energy stone from HOFFMAN RUINS turn left and fight a mini boss You will be able to unlock him then

NOEL- Follow the storylineHe will join your team in NEDE

CHISATO- This one is the last character to be unlocked Trigger the first cutscene at Centropolis ( first time ) then before going to receive the mission for going to the for fields which mean after going NOEL's home and get a PSYNARD go to the third floor and turn left You will get her in your party