MegaMan Battle Network: Chrono X

Mega Man Battle Network Chrono X is a fan-made fictional storyline within the Mega Man Battle Network universe that takes place in 1 AE (After Expo, essentially meaning "after the ending of Battle Network 6").

It's been a year since the Cybeasts threatened the peace of the world. Lan and friends think life can't be better,living in a quiet, peaceful net society. Deep inside, Lan wants to relive the days of defeating net criminals, and saving lives... Soon he will get his wish, because a dark secret is about to threaten the earth.