Infinity's always been a sort of 'Bubble Baby' through a majority of her life. Being a sheltered girl, she's been taught that the world can be a pretty dangerous place. One day, however, the now-young-adult decides to leave her small village of Willowhill to go on a little adventure of self-improvement. To take a little toe-dip into the pool of Miitopia, like her 2 lost sisters had previously done, vowing to not stray too far and reach a similar 'end' as they had. Unfortunately, due to a set of unplanned events, that little toe-dip into the shallow end plunged her into a deep end of fear and madness, as she gets thrown into this whole 'Saving the World' mess.
Thankfully, though, she's not entirely alone in this, as she'll be accompanied by many friends to take down the Dark Lord Vanity, forming a group titled 'Team Pyrite'. The only issue is that... well, none of them are the most 'desirable' of heroes, due to many factors. Laziness, greed, a lack of confidence, the list goes on. But hey, they're the best, willing fighters Miitopia has right now... they probably have SOME potential, right?
If they can't do it, who else will?