Frightening

The giant type Makamou with the feature of a tortoise & a rhinoceros. It appears every 100 years to feed, appearing in the guise of a boulder. The Frightening's weak points were the eyes on its shell, which were blasted to bits by Majestic Breath Demon before Echo Demon's Strong Flower Union Dance form finished it off.

During the start of Dragon, a Frightening appeared; it came close to killing Roaring Demon until it was blasted to bits by Majestic Breath Demon's Gale Flash.

Prince & Princess
The oldest of the Prince/Princess pairsl they finally awaken after a century to feed the Frightening. The two are rock-hard & are as equally strong, facing both Echo Demon & Majestic Breath Demon. Prince was killed by Echo Demon's Raging Fire Bullet at the same time Princess was taken out by Majestic Breath Demon's Gale. A second pair were created by the Black Puppet to track down & destroy the Berserk Prince. Just as Echo Demon & Majestic Breath Demon joined the fray, the Princess was being devoured by the Barserk Prince as Echo Demon's Raging Fire Bullet destroyed her & wounded the Prince, who was weaken enough to be mauled to death by Diana's Disc Animals.