A princess from the Land of Jewels comes to Earth with the Kirama Stones to find individuals with strong "shining spirits" known as Kiramental to become the Kiramagers and fight the threat of the Yodon, an imperial army of darkness.

Years after retiring from their formidable ninja lives, a dysfunctional family must return to shadowy missions to counteract a string of looming threats.

Chiyomi Horikiri (Ai Iinuma) is a warm hearted high school student. She is a member of her school's basketball team. She stays bright even in a bit complicated family composition. Her boyfriend is Hiroyuki Minami (Yusei Yagi). One day, Hiroyuki Minami suddenly shrinks in size to only 15 cm. in height. He can easily fit in the palm of someone's hand. He appears in front of his girlfriend Chiyomi Horikiri.

Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.