I'm looking for a manga with a strong male Mc with some special powers and action. But there's a girl he loves, who loves him back, that is afraid of the overwhelming amount of power he has and must use to protect her, do his job, ect..
Thanks!

Kanata Kara is similar to that, but the female protagonist is only afraid (not for herself but for him) when he unleashes 'too much power' to protect her.