Colorful Ninja Iromaki

Third-grader Himeno moves to a huge mansion in the country. But she soon finds out it's a ninja house! The ninjas Akamaki—who tends to the fires, Aomaki—who sees to the water, and Kiiromaki—who sees to the carpentry, mistake Himeno for a princess, and begin solving problems for her with their own unique skills. But that is not the full extent of their powers! When Aomaki and Kiiromaki combine, they from Midorimaki. Similarly, when Akamaki and Aomaki combine, they form Murasakimaki; and when Akamaki and Kiiromaki combine, they form Tōmaki. Life with these colorful ninjas has only begun, when they discover a large tornado heading for the mansion. What will happen to the Himeno family? Can the colorful ninja protect Himeno?

(Source: Anime News Network)