 If you liked
Zankyou no Terror
|
 ...then you might like
Gleipnir
|
The protagonists face off against an enemy whom they share a history with them and has a similar ability. Along the way in both shows, the protagonists make allies and try to reach their main objective/foil the enemy's plan. With a similar darker/serious tone and a presentation plot that slowly unveils more about the origins as the story progresses.