Return from Eternal Night

[No cp + no ambiguity + fast progress + partial group portrait in the later stage + interstellar in the later stage] Seven years ago, eternal night fell, and for seven consecutive days of darkness, the whole world was turned upside down. And the boy who escaped in the dream for seven days knew how scary the world had become. He always hid himself and didn't want to be entangled by monsters. But seven years later, the Heretic Management Bureau came to find him, and the Dream City that he had not escaped from seven years ago also appeared again. "This world has no shortage of people, let alone dead people." If you want to protect the people you want to protect, you can only become stronger and stronger than everyone else! From the beginning, all he wanted was to live his life as an ordinary person...