the references are from anime called Date a Live, i can give you full list of the codenames or you can search it on Date a Live Wiki if you want
Viewing post in Spirit Lover v0.54 Public and v0.57 on Patreon comments
black hair, gothic red dress: nightmare
twin, orange hair: berserk
blue hair, green bunny dress: hermit
red hair, red dress with horn: ifrit
yellow hair with 2 balls on her hair, pink dress: zodiac
green hair, witch hat: witch
purple hair, yellow dress with moon on her hair: diva
purple hair, purple dress: princess
grey hair, grey nun dress: sister
yellow hair, black dress, angel-like: judge
that's for now, i'll tell you more later