Ellie and Maewin are spending a boring summer day when something amazing happens. While trying to reach some high exercise bars, Ellie discovers she can make herself grow bigger, and soon, Maewin discovers she can do it too! What will these two sisters do with their newfound power?
Jessica is watching the news when she finds out that her old friends Ellie and Maewin are coming to visit her. Why’s this newsworthy? Because both Ellie and Maewin have somehow grown into giantesses, and are keen to show off their new size to Jessica. Better yet, Ellie wants Jessica to grow with them!