Shishigami Hero a teenager that decided to declare war on japan ... After they caused His mother to suicide , and barelly killed His Girlfriend and her grand mother ... he Goes Full psycho mode declaring that all the people in japon are His enemies .... he killed a Tottal of 1100 people :D check the Video to see the way he did it
I advice all of you to watch this Show , the Name is INUYASHIKI , it have 11 episode
and it's so deep and enjoyable