omg what the heck I just found this again omg it's TERRIBLE I updated it, the thinner lines are the newer parts
so basically the Umbreon was rejected by his mother (the Espeon) before he evolved because he was shiny, so he ran away and found another shiny Eevee, who evolved into the Flareon. When the Umbreon evolved, he decided it was time to get revenge, so he gathered his group of Pokemon (a Persian, a Growlithe, a Pidgeot, and a Tauros) and attacked his mother's camp. His mother recognized him but refused to admit that he was her son. His siblings, a Leafeon and a Vaporeon, were too young at the time he ran away to be able to remember it. The Leafeon was angry and turned on his mother, but the Vaporeon stayed defending her. Eventually, the Umbreon and his team won. Yep, that's it.