Butting in on the house discussion. What you listed are traits that Prompto has, not traits that Prompto values, which is what decides what house you end up in. Dumbledore was mainpulative and cunning and ambitious as all get out but he was still a gryffindor. Hermione is extremely studious but was still a gryffindor. Luna was kind and loyal and did the right thing because it was the right thing to do but was still in Ravenclaw. Some of the behaviors do match up with the house descriptions because they value certain things and will therefore act according to those values, but ultimately they're not sorted by personality.

sorry. I just really love sorting headcanon conversations :D