Weiß Kreuz

More specifically, if you were intrigued by the concept of the Twelve Heavenly Generals in the Martial Fist arc, then you may enjoy the similar group, Weiβ. Both are underground assassin teams that target criminals who escaped the justice of civil law. There's also the same angst-ridden back stories to some of the characters. And if the supernatural element of "Tokyo Majin" excites you, then check out the antagonist group to Weiβ (White), Schwarz (Black) whose members have ESP powers and work in the shadows. 

At the very beginning Night Head Genesis reminded me so much of Weiß kreuz! They share the same ambience, melodrama, and even the artwork styles are similar (although Genesis is much more consistent than poor Weiß). While there are no assassins in Night Head Genesis, both anime do revolve around unique sets of people and professional organizations; for instance, Arc is comparable to Eszett. The plot is carried out in much the same way as the Missions of Weiß - that is to say, with story arcs that are all connected by an overall scheme in the end. The arcs in Genesis are not as action-packed as Weiß, but the fight sequences watch the same. The Genesis brothers reminded me specifically of Aya and Omi from Weiß, but of course there is the feeling of Schwarz about all the characters in Genesis simply by their ESP and desire to alter society with their supernatural gifts. Definitely if you've seen one anime, you'll enjoy the other title. read more 

Come here for your cute guys with sad backstories. Of course Weiß is much edgier, in terms of backstory and actual story, but if you're watching one for the characters and the bl subtext (no actual text) you'll probably be happy with the other. 

About group of assassins 

It is difficult to pin down exactly what makes Weiss Kreuz and Meine Liebe so similar since one deals with hitmen in the modern world while the other takes place in a academy in a vaguely historical setting but they share a certain atmosphere. The almost all male ensemble that has to interact and cooperate in close quarters as well as the contrasting personalities add an air of drama, the characters' backgrounds that are brought to weight on the narrative and the overall feeling make these titles reminiscent of each other. Those who were able to turn a blind eye to the flaws of one are likely to enjoy the other.  read more