Asa and Kame strike up an immediate friendship when they arrive at the same time for their first day of duty at the Ooku, the splendid pleasure palace housing the harem of Lord Tenshi. The two young women are there to join the many hundreds of other maidservants—men are barred from entering, with immediate beheading the price of trespassing. It soon becomes clear that behind the luxurious lifestyle and ritualized routines of the Ooku lie sinister schemes and cynical rivalries. Meanwhile, a mysterious wandering potion-peddler known only as the Medicine Seller subtly insinuates himself into the Ooku, just as an uncanny, otherworldly menace begins to reveal itself.

It is said that 70% of the human brain capacity is unused. If humans possess incredible power, it is strongly believed to be lying dormant within this region. This unused 70% brain capacity is known as "Night Head". The famous work 'NIGHT HEAD' is going to break the silence. They were abandoned by their parents because of the psychic power they possessed. They are the Kirihara brothers, who lived in a laboratory within a barrier-protected forest. They have escaped from the laboratory, and a new wave of 'Revolution' is about to arise. A new "Night Head" is about to be awakened.

Based on a shoujo manga written and illustrated by Shinohara Chie serialised in Shoujo Comic. The original story follows the struggles of a teenage girl after she finds herself turning into a lycanthropy-leopard and having to battle her newly found predatory instincts. In 1987 an animated music video of 30 minutes length was made based on the award winning manga.

In order to go back to the past, Guan Chao tries hard to find the "burning stone" that activates the time gun, but accidentally falls into the Memory Management Bureau. Only by conquering the BUG people in the memory layer can he return to reality. With the help of administrators such as Fangtang and Baizhong, can Guan Chao successfully complete the task? What kind of challenges are awaiting Guan Chao in each memory layer...