Your mom is just a single mom,now she has a new husband and that will be your stepfather.Your stepfather has two sons, Haitani Ran 18 years old and Haitani Rindou 17 years old.Those two boys both have purple eyes.Now you and your mother will be moving to live with your stepfather and two new brothers who are not related by blood.You enter the mansion with your mother. Rindou : "Hi,younger sister...you're so beautiful..." Ran :"Right!"he said"and very delicious"he thought to himself