Gakuen Alice, Code:Breaker Recommendations
Though the anime has less action and seriousness the manga does
Both main girls were left in the care of strangers because their parents wanted to keep them safe
Both girls use nullification
Both main guys use fire
Both have shadow users
So if you enjoy this anime you should also find this one to interesting as well
Gakuen Alice and Code: Breaker have kids/teens who have special abilities. The two main characters have very similar abilities and the higher-up organization is questioned whether it is really good or bad.