Anyone know what name of this manga?. All i remember is the female lead was admitted in hospital. She is boring in ward and try to open new game online which no one know what is it. She keeping play game bcus she able to enter other world that male lead living in historical time. Male lead was abused by his family or staff or someone. He living alone in bad and small place. Female lead keep take care of male lead no matter male lead x able to see female lead cuz she invisible. Until male lead grow to adult and also able to enter female lead's world and also take care of her .