Many years ago, five powerful magicians and three legendary princesses fought against the the forces of Dysdark in order to defend the Hope Kingdom. Now in the present day, it's up to a new team of heroes to rise up and save the day! PreCure Princess Engage! Magical Source, Mystic Force

While the Dino Thunder gang are returning to the base after an attack, a portal opens in the woods and the last thing they expect comes through it, Haruka Haruno aka Cure Flora. Now stuck in Reefside she helps them defeat Mesogog and his monsters all while going to Reefside high as a transfer student along with a Conner falling for her. Set after "Golden Boy."