ENFP? Seriously? Based on what? She has the Fe-Ti dynamic going on clear as day — She's not driven by her own values, but by what everybody else wants her to do. It's only when she meets INTP Miyu that she starts to realize that she has no reason to fight. Her Ti isn't really on board with that she's doing. IMO she's an ISFJ who, at first, seeks comfort in her little Si-Fe world,  but through her friendship with Miyu and her call to action at the beginning of the story, she goes through a bit of a hero's journey, getting thrown into the Ne-Ti chaos.

Also, not that this is necessarily evidence, but it would fit really well considering Chloe, being ENTP, is essentially the opposite part of her personality.