Colorful Ninja Iromaki

Himeno, a third-grader, moves to a large mansion in the countryside with her family. She soon discovers that it's a ninja house, where three ninja siblings - Akamaki, Aomaki, and Kiiromaki - live and work. Initially, the ninjas mistake Himeno for a princess and take it upon themselves to solve problems for her. The siblings have unique skills, but they also have the ability to combine their powers to form powerful forms like Midorimaki, Murasakimaki, and Daidaimaki.