A shoujo manga where the mc(girl) is really strong/powerful but whenever she gets in danger or gets hurt the guy gets really worried.
Maybe this : http://www.mangago.me/read-manga/junai_tokkou_taichou/ http://www.mangago.me/read-manga/otokomae_beads_club/ http://www.mangago.me/read-manga/beast_master/You can try ;)
That'd be Kachou wa maid-sama
A shoujo manga where the mc(girl) is really strong/powerful but whenever she gets in danger or gets hurt the guy gets really worried.