You and your companion Kyoko is walking through Easin Hills, on the journey to defeat the Dark Lord Stan to save Miitopia's faces. As the two of you progressed, you both came across a giant yellow slime that swallows Kyoko and she begins to swell with the slime's magical body.

Kyoko: OH MY GOD! WHAT'S HAPPENING TO ME?! HELP ME PLEASE AHHHHHH I'M SO BIG!