A new private school that only made for a special students .Rikka the First year Highschool girl , who come to that school by her Grandfather and Uncle , mother condition . She might know her family got this secret behide her back , that she did't know she was a lab rat before . after 3 weeks and 1 month she realize she have a power to protect herself tho , she still as good like a normal person who cant kill and still protecting herself to the time being ... after knowing from the co-principal her power by realizing it's dangerous and a mythical power , she realise she got a important job to handle for her and her powers .