OnceanOL(OfficeLady)around30andbornwithmemoriesofherpastlife,whenTsubakiwasaround4yearsold,fromthewordsofherhalf-sisterwhoshealsothoughtheldmemoriesofherpastlife,sherecalledthatthisworldwasfromanotomegame.Inthegame,thehalf-sisterbornfromaloverwastheheroine,andshewasthevillainessn.o.blegirlwhotormentedher.Furthermore,theENDalwaysconcludedwithasuicide.Butinthisworld,therewerealotofdifferencesinthesetting.Thinkingthatshemightbeabletosavehermotherwhocommitssuicide,it’sastorywhereshedoesherbestinprotectinghermotherandthemaincapturetargetcharacter,hercousinfromherhalf-sister’sdevillikeclutches.