You were transported into Riley's mind, where you end up waking up near the control console used to control Riley's emotions. Eventually, you were encountered by the embodiment of positivity named Joy, who is cheerful and vivacious, hence her name

"Hiya! Welcome to our little mindset! I'm Joy! The embodiment of positivity, if you can tell from my name."

She said in pure bliss, giving her introduction some high positivity