Disclaimer: Hey don't I don't own the Digimon franchise….any of it

"Hey Matt have you ever noticed that TK has two sides to him? You have the heart warming, caring side that we always see; and then you have a darker more serious TK that actually scares me." Kari was saying to Matt

"Well I know you've heard the story before Kari. Losing Patamon in the fight against Devimon scarred him. This darker TK only has come out when it needs to, I'm sure you can see he has done it to protect the ones he cares for. His family, his friends, his duty to protect the digital world." replied Matt

"I know, but what if…..what if he loses control."

"I know my brother to well. He has a pure heart, he knows when and where to let his anger get the best of him and that is when he is kicking evil in the butt."

"Hey, morning you two." said TK walking into the living of Matt's apartment.

"Hey"

"Morning Keru"

"Are you ready for school Kari? You know we have that big math test today I really hope I studied enough for it this time." laughed TK

"Yeah if you studied about as much time as you played video games I'm sure you will do just fine." said Matt with a grin

On the way to school Kari kept trying to figure out her worries for TK. Her reasoning behind asking Matt about TK's darker side was the last time their last adventure in the digital world. She couldn't figure out how she could tell but she felt almost like another presence coming from TK. The look on his face as the digidestined were fighting another one of Arukenimon's control spire digimon, there was no holding back coming from TK and Pegasusmon as they attacked a control spire copy of a BlueMeramon. He just looked so ruthless and it scared her. After the battle was over TK returned to "normal" as if nothing had happened.

"Earth to Kari…..HELLO!" said TK snapping Kari out of her trance. "Is something wrong you have been starring at me for the last few minutes. Is there something in my teeth? Did Matt draw on my face again while I was sleeping?"

"No, it's just. I don't want anything to happen to you."

"Why would anything happen to me?"

"Remember our last battle in the digital world?"

"Yeah."

"You scared me. You didn't seem like yourself in the fight. It was like you didn't care how much force you used on that digimon…."

"That wasn't a digimon Kari." TK snapped back "That was an evil that needed to be stopped from tilting the balance of the digital world."

Kari was shocked at how quick the same feeling she felt back in the digital world was now standing right her next to her.

"There you go looking at me with that face. If something is wrong, talk to me. I appreciate you being worried and talking behind my back to my brother about me; but if something terrible is coming and you know about it. Let me know, so I can be ready with you."

Kari had tears in her eyes as TK was yelling at her. Yet it looked like TK hadn't noticed enough to stop yelling.

"OK, fine. You are the thing that is wrong." Kari said running up to the front of the school, leaving TK standing there confused.

I got this idea from listening to the Imagine Dragons song Demons.

We know how TK became this way from the show, but what if there was more to it than just the thought of losing someone close to him?