Here we are, doing our duty of watching anime to find the truly good ones and recommend them to our fans and we come across this GEM! This dark anime has us floored. Based off the manga and video game, Satsuriku no tenshi, follows 13 year old Rachel Gardener who lost her memories and awakens in an abandoned building. Following eerie clues written on the wall she gets on an elevator and heads up a floor. This is where she encounters a sickle wielding psychopath, Zack, who in their first encounter tries to slice her up with his sickle. This anime will satisfy the horror and psychological thrill seeking fans. We are glued to this one all season. The video game can be found here.