sentences:  After his invasion and victory over Mario, the attached fortress serves as the location for playable side quests of the kidnapped Peach.In the main quest, Mario tries to retrieve all of the seven imprisoned Star Spirits on land, where most of the locations are linked to the central Toad Town, which acts as the game's hub area.The story's main conflict arises when Bowser invades Star Haven, the residence for the Star Spirits, and steals the Star Rod.