The Sleeping princes of Demon Castle

Young Gokuu seeks out Kamesennin to ask to be accepted as a student, while the little runt priest, Kuririn, arrives for the same reason (and uses a sukebe magazine as a bribe.) Kamesennin sends them on a quest far to the east, where "five mountains stand, called the 'Devil's Hand'." In a castle there, is the legendary, and pretty, "Sleeping Princess." Whoever brings back the Sleeping Princess will become the old pervert's student. The two boys set out, and Kuririn uses all the standard tricks to trip up Gokuu. A little later, Buruma, Oolong, Yamcha, and Puuaru -- who are on summer vacation -- arrive at Kame House to find Gokuu. Kamesennin says that the two boys have gone far to the east for training, so the friends fly in Buruma's Capsule jet to the Devil's Hand. When they near the castle, the jet is attacked by demons, and Buruma is taken to the Castle. The owner of the castle, Lucifer, pretends to treat her as a guest, until it becomes time to awake the Sleeping Princess. In the meantime, Gokuu and Kuririn are fighting monsters, and they drop in on Buruma just before Shitsuji can drain Buruma of her blood through a giant syringe (Buruma's blood is to be used to toast the awakening of the Sleeping Princess.) Then, Ranchi arrives to steal the Sleeping Princess -- which is really a giant jewel. Everyone is captured and encased in a wall of rock. It is the night of a full moon, and the moonlight is used to power the jewel. The moonlight also turns Gokuu into a were-ape, and everyone escapes. They fight Lucifer, and Gokuu uses Kamehame-ha to destroy Lucifer's Princess-powered laser cannon (the full-moon-light is to be used to destroy the sun, and begin the Reign of Darkness), and kills Lucifer. The heroes escape, and Kuririn acts contrite, but doesn't actually apologize to Gokuu for his behavior. The two boys return to Kame House with Kushami, and Kamesennin takes them both on as students. Then, Kushami sneezes, turns into Ranchi, and shoots Kamesennin full of holes.