Gerontocland Planaria
Gerontocland Planaria is land planarias that became be obstinate by getting older. They used to be Platyouth Today once, but they seem to have metamorphosed into this CREATURE before they unnoticed. Despite their abilities declined, they continue to stay in the colony forever and annoy their surroundings with a selfish attitude. They live abundance in colonies with strong blood relationships, ecosystems with a long life expectancy of CREATURES, and regions that build ecological pyramids by age rather than abilities. They have similar mode of life to Grate Nostaljars, and often act with them. Also, there there are individuals that not only are arrogant, but also use violence if there is something they do not like. Along with the recent increase in Aging-sociable Weavers, this CREATURE is also increasingly powerful and has become a big problem.
Many of Gerontocland Planarias have a past that they have achieved some success and that made a great contribution to colonies and ecosystems. They had a high ability, and endeared to their surroundings. However, it was a figure of a young age, and at present that they are old, they are turned into parasites that cling to the glory of the past. Because they missed the opportunity to take over their roles to young individuals, they can not leave easily from the colony, and they still leave a reserve of energy, so it is also impossible for the surrounding CREATURES to drive them out. And when they see the CREATURES of the same age that are still active, they misunderstand that they will be able to still do their best.
The essence of this CREATURE lies in the part of being age old. Though they have built up a lot of experience and knowledge, and established a firm self, this confidence leads to the creation of friction with their surroundings. They have no doubt that their opinions and actions are correct, and can not accept changes in the times. They are thinking that they are already completed as CREATURES and do not need to learn, grow or evolve.
All CREATURES will grow old one day. In other words, everyone has the possibility of being metamorphosed into Gerontocland Planaria. It is impossible for anyone to stop emergence of them, and it is said that the individuals that think that they are not supposed to become Gerontocland Planarias, the more are more likely to become so. Because, great self-confidence and strong belief is a condition to metamorphosis into this CREATURE, and trying to do right things is a trigger for this metamorphosis.
There are also an only one way to please the surroundings, even for Gerontocland Planarias that have been reduced to completely pesky vermins. It is to fade away from this world by dying.