Slot 01 / 27
NamedRem
Named combat ally in the official description.
4 named · 23 empty
Start with Rem, Emilia, Beatrice, Reinhard.
Those four are in the official blurb. The other 23 exist as a count, not as a fan-cast. No popularity ladder.
Slot 02 / 27
NamedEmilia
Named combat ally in the official description.
Slot 03 / 27
NamedBeatrice
Named combat ally in the official description.
Slot 04 / 27
NamedReinhard
Named combat ally in the official description.
4 confirmed. Switch to all 27 if you want the empty slots visible.