Operation Invasion

In the city of Shizukawa, Japan, a quiet high school boy lives a normal life. But one day, he realizes he has a secret talent...



Fighting.



His abilities catch the eye of Yakuza gang members, and he decides to join them in an effort to be feared and respected, leaving his past life behind...



As the world suffers from global warming and lack of resources, an evil and deceitful man uses this as an opportunity to create his own technologically advanced global power.



Japan is forced to create a new force as a response to this threat, called the War-Knight Division. Using young citizens as skilled soldiers, many teenagers are conscripted to join this new division.



During the struggle, one War-Knight will stand out for his abilities.



His name is Hiro Saito.