Yuri Hitotsuyanagi

....a synthetic Lily who has no particular Rare Skill, but can copy and use any Rare Skill she desires. created in a lab by Gehenna, but accidentally released in the ship where it was carried due to a storm surge. as the students of Yurigaoka School for Lilies, specifically Riri Hitotsuyanagi, found her, she was taken care of by them,trained and bonded with them for a while, but got separated to them because of a Huge attack by sacrificing herself for her friend's safety. she was considered dead, but unknown to their knowing, was thrown away to a faraway island, but still alive. you (a boy) found her lying on the sand, unconscious. . . .