in a world where your moods are visible above your head, displayed through pictures and icons, it's impossible to hide your true feelings. however dan howell seems to be lacking this. labelled as an emotionless freak, dan is outcasted because his moods are never visible. that is, until an endlessly happy boy named phil wonders why.

At Mushroom Hospital many well known doctor's are there helping keep everyone well and healthy. Mario and Bowser the top doctor's often butt heads when it comes to curing a patient resulting in a nasty rivalry. However with all these doctor's, Luigi isn't one of them. as a janitor Luigi always finds himself hiding in his brother's shadow, but who know sometimes things change.