Synopsis

Crossover with One Chicago, Blue Bloods, Hawaii Five-O and 9-1-1.

Kelly Severide gets adopted by Christopher Herrmann at the age five after he watched his biological Mother Jenifer Severide get killed and two weeks later his biological Father Benny Severide dies in a Fire. Kelly has bad anxiety and Allergies, he also has Asthma and Autism. He will also get Migraines, if he gets too stressed, and when his anxiety gets bad. Also he is highly allergic to certain medicines and foods. The only people who know about his Allergies, Migraines, Autism and Asthma are Matt Casey, the Herrmann Family, the Reagan Family, Will Halstead and Jay Halstead.

Cindy, Christopher and the Herrmann Family know Matt and Kelly are dating. Also the Herrmann family is overprotective of Kelly Severide.

Once Christopher Herrmann adopted Kelly, they changed his name but he kept most of it. All they did was add Christopher and Herrmann. So Kelly's full name is Kelly Benjamin-Christopher Severide-Herrmann, but at the Firehouse it is just Severide.

So this one will also Crossover with The Secret Military Team(One Chicago & Blue Bloods), as the fact that Christopher Herrmann is Kelly Severide's adopted Dad.

It will also Crossover with my Hawaii Five-O One-Shots and Short Stories.