Mitsunari Tokugawa, the organizer of the historic Tokugawa underground fighting ring, has created a tournament featuring 38 of the world's best fighters, many of whom are grandmasters in their respective form of martial arts. With the exception of weapons, anything goes in Tokugawa's ring so that each fighter is able to showcase their true power and strongest secret moves. Baki Hanma earned a place in the tournament due to his status as the reigning champion of Tokugawa's fighting ring. Will he be able to come out on top?

On his high school graduation day, Itsuki's cousin, Mahiru, tells him that she's pregnant. Just then, a gate of light emerges and transports the two into the world of Granvania. In this land, Impurities have been causing a disturbance to the Stars, ultimately plunging Granvania into chaos and disorder. And Itsuki, now revealed to be one who is fated to meet with the Star Maidens, is seen as Granvania's last hope and was thus given the task to produce Star Children and combat the impurities. And unless the task is complete, Itsuki may never be able to return home. (Source: Wikipedia, edited)

Long before modern times, sweets-loving Princess Chizuru Ooshima painstakingly studies to pass her English proficiency exam. To keep Her Highness focused, Lord Shogun bans all sweets in the town of Edo. Meanwhile, tensions arise between two powerful factions: the Mizutani group, led by the respected Shizuku Ane-san Mizutani; and the Yoshida group, under the leadership of the capricious Haru Harunosuke Yoshida. Ane-san tirelessly tries to make contact with Harunosuke to deliver the news of the founding of a new temple school. But soon after she meets him by chance, romance blooms between the two. However, not everyone approves of this development—and they might stop at nothing to prevent their happiness.

Keitaro has finally passed the entrance exams, and is officially a Toudai student. But after breaking his leg in an accident in the entrance ceremony, he thought and re-evaluated himself. Having new goals, Keitaro follows Seta on an overseas archeology trip. During his absence, however, all was not well in Hinata Lodge. Urashima Kanako, Keitaro's sister, arrives on the scene. She claims to be the new manager of Hinata Lodge starts to go against all the tenants. Things become even more complicated when they recieve a letter from Keitaro. The tenants and Kanako made a big mess trying to get the letter, but Seta's car crashes in before anyone could read the letter...