The Sad Story of a Bipolar Monster

Our solar system has 9 planets. Not in order they are Mercury, Mars, Venus, Saturn, Jupiter, Uranus, Neptune, Earth and the invisible planet, unknown to Earthlings, Ithaca. To those confused, Ithaca is a super with a geological feature that is almost similar to Earth's and it contains almost all of the same species that Earth, for the most part.
Being an ex-rogue plant, it shares Earth's orbit, bu forever stays on the other side of the sun and is also invisible, only unknown by it's residence and all of the planets, comets, stars and moon. And so you might think that this planet is to boring to care for, but this planet is more than it seems. Especially since it houses some extraordinary characters, like for example, Mercuree.
You see, Mercuree has always been an oddball, even for a Monster. Growing up he was told stories of a time when People and Monsters had gotten along, stories of which seem more of a fairy tail that you tell a kid before bed time. But one day, when taking a daily morning walk through the park, he finds something that changes his view of the separation of People and Monsters. Now, as he tries to change his town, strange things randomly start happening, like a rumored disease that supposedly kills Monsters and turns them into ruthless killers. And if things do succeed, he'll defiantly have the Checks and Dots, the not so secret police, hunting him down.
(Part of the Sad Story Series and The Sad Stories of the Suicidal Monsters Series)