Nathan's Kingdom (2020)

Nathan's kingdom is a science fiction novel about a 19-year-old homeless man, Laura, who will not surrender to social service to her 25-year-old autistic brother, Nathan. She takes him on an impossible mission to find a virtual kingdom that exists only in Nathan's imagination, but it turns out to be so real; it changes their lives forever. To cope with the hardships of a broken family, Laura hid her feelings when she was young and played with her appointed best friend, Nathan. Together, they invented a virtual safe haven, called the Kingdom, and promised each other that they would find it one day. Ten years have passed and I have come of age. Laura lives in Los Angeles with Nathan, a professional actress, but things didn't go according to plan. Nathan asks them to find his kingdom and take revenge on her if she doesn't keep her childhood promise. Laura failed in her career and finally lost all hope for herself. No money, no place to live, nothing.