Here's a grimdark Pokemon fanfic idea. Like it can get too real and uncomfortable it the envelope gets pushed.

A child abductor (or pedophile for major grimdarkness) travels around Kalos with his Hypno and Drifloon luring children into a trap and/or hypnotizing them to sleep. One day, the abductor comes across a young boy about 7/8 years old who wandered away from his parents. First the boy notices Drifloon and thinks its a wild one. He goes up to it and grabs on thinking its harmless when suddenly Drifloon jolts him forward and tries to take off with him. After the boy resists and breaks away from Drifloon, Hypno jumps out of the bushes with its hypnosis ready to overtake him. Right as the boy is about to go unconscious, a wild Poochyena charges in and attacks Hypno. Poochyena and Hypno fight and Drifloon tries to help. Right before Poochyena is about to be double teamed and defeated, an abandoned Umbreon jumps in to fend off Hypno and Drifloon. The Abductor emerges with a whip in an attempt to tame the Umbreon. Umbreon uses Agility and then rips off a powerful Dark Pulse attack to torture the abductor's mind. Poochyena recovers to Bite Drifloon and Hypno all up and down. With the Abductor, Drifloon, and Hypno reeling from the battle, Umbreon gives off one more Dark Pulse to knock them out. Finally, the commotion catches the attention of the boy's parents and a policeman who arrests the Abductor. Despite not having any pokeballs or badges, the boy gains the friendship of Poochyena and Umbreon and they become his pokemon. He grows up to become a skilled Dark pokemon trainer in honor of the type of pokemon who saved his life with his heroes Mightyena (evolved Poochyena) and Umbreon leading his team.

See it turns out happy.