Heartwork: Symphony of Destruction is the anime adaptation of a VN from the same creators of Bible Black and follows 3 different routes like in Yosuga no Sora, in each episode the protagonist find a gun and in each episode the only thing that changes is his approach towards the gun.
1 - Start a career as a hitman.
2 - Just take it to school for no reason whatsoever.
3 - Keep it in his room while his stepmother and sister are home.
All good ideas right? What can go wrong?
Do you like to see girls being violented and killed for no reason? You'll love Ep.1
Did you love
the ending of School Days? You'll love Ep.2
Do you have lewd feelings towards your mother and your teacher and... You're into necrofilia? You'll love Ep.3
This anime is marvelous for all the sick bastards just like me :)