@sasaki-san In the same way that they always "comes back"... Seeing in a different timeline other possible outcomes of their lives as exorcists. Nanako is one of my favorites too.
@zimmanmark For her big breasts and scenes from season 2 in my case. Although she can have a shitty personality, when you take it away Nanako can become... quite charming.
@zimmanmark nanako has a tasty peachy butthole and a haughty demeanor that makes her subsequent humiliation more erotic. Fan no Hitori loves drawing anal with her meaty ass.
Mitsuki Azamino's my personal favourite (martial arts girl, lower right on page 2, IIRC first appearance was in S2 with the photography club). Shion (the mandragora girl from S2) is a very close second.