I Carve Bonds in the Heavens

The day I awakened my powers, I got a book. No attack power. There are no auxiliary effects. Nothing can be done. Rating: Level I·Scrap. Everyone was laughing at me - in this era where superpowers determine class, my life was over the moment I awakened. Until that day, I was hunted to death. At the moment of death, the book was opened. I saw another world. There were man-eating ghosts there, and a boy running through the snow with his sister on his back. The boy stopped at the most painful moment and asked me: "Are you okay?" It was the first time in my life that I was treated as a human being by a stranger. … The book told me: If you want to gain power, you must pay a price. What's the cost? It is life and death. It is unforgettable. It's when you finally leave that world that you don't even have time to say goodbye. I took away a page. The breathing he taught me is engraved on the pages. From then on, I traveled throughout the heavens and the world. On every page of the book, there is a name that I cannot forget. —— This is a story about a Class I scum surviving in despair, growing up in the world, and counterattacking step by step with the weight of separation. Not invincible, not a holy mother, not a harem. But it's passionate, but it's bonding, but it makes you need to take a break after reading certain chapters. Ps: The first world's demon slayer, the main world's urban superpowers, have a complete power struggle and growth line.