Musashi no Ken

In the year 2050 the world population is crazy about the "Metal Fight", a competition where people compete in battles featuring giant robots. An organization called Iron Mask is planning on transforming Metal Fight competitors and their robots into weapons, and tries to kidnap Shoko Saeba, a robot programmer who created the Red Baron, which uses a feedback system. Ken Kurenai is able to protect Sally and the Red Baron, and becomes Metal Fight World Champion in the process. Iron Mask then decides to send out their forces to take Ken and the Red Baron out forever.

Baki and the strongest Underground Arena fighters face a threat of historical proportions: the resurrected Musashi Miyamoto, Japan's greatest samurai.

The story takes place in the year 1614. Two ninja clans, Tsubagakure of the Iga and Manjidani of Kouga, battle each other to determine which grandson of Tokugawa Ieyasu will become the next shogun. The deadly competition between 10 elite ninja from each clan unleashes a centuries-old hatred that threatens to destroy all hope for peace between them.

High schooler Wakana Gojo wants to become a kashirashi—a master craftsman who makes traditional Japanese Hina dolls. Though he's gung-ho about the craft, he knows nothing about the latest trends, and has a hard time fitting in with his class. The popular kids—especially one girl, Marin Kitagawa—seem like they live in a completely different world. That all changes one day, when she shares an unexpected secret with him, and their completely different worlds collide.

Male student Souta Tsukishima begins working at his family's public bathhouse as a back washer. While concealing her true identity, Souta's classmate Aoi Yuzuki visits the bathhouse. A relationship between the two begins to develop when Souta washes Aoi's back.

Rantarō, Shinbei and Kirimaru are ninja apprentices in the Ninja Gakuen, where first grade ones are called "Nintamas". They must learn everything a ninja must know, but as for our heroes, money, food or playing are more interesting. The series show the everyday adventures of our heroes.