Befriended: "Be my friend! I'll show you some good dreams in exchange!"
Receiving food (favourite): "Phew, yummy!"
Receiving food (normal): "*Chompchomp*"
Receiving food (disliked):
Freed from Crank-a-kai:
Whapir first appears in EP088, when she arrives at Usapyon and Hailey's place and asks for a job in their detective agency. Hailey hires her and nicknames her "Hakkun", which Whapir likes. Usapyon insists she must have a test, and the opportunity presents when the first case of the agency starts: Slicenrice arrives to ask for help in solving a murder case involving his comrades. Whapir then eats Slicenrice's memories and projects them, explaining her powers in the process.
From this point onwards, Whapir's abilites prove to be useful to narrow the suspects of each 'murder' case given the circumstances of each one of them.
Even after the detective agency closed down, she still hangs out with Hailey and Usapyon from time to time.
When snapped in the Yo-kai Cam, her tip is, "Get a good nap! I think that helps give you good dreams!"