the one with Seriphine and no mod, just the game i got off itch.io the 150_15 .pc and didnt know there was an outfit for Nimhe. I must not be there yet or i missed something
The Pony quest for seraphine kicks off when her exhibition has reached level 6 . You can only start to train her exhibition once she is willing to wear a uniform and has become a member of the crew. She becomes a member of the crew once she has contributed three times to the ship's mission by doing a successful shopping activity.
As this is more or less an optional Quest, it is not visible unless the shopping trigger has been fulfilled.