Tang Jing, an ordinary gamer, unexpectedly awakened the memory of his past life one day - he was actually the "guardian" of thousands of comic worlds and had sacrificed his life to save the world. Now that he has returned from rebirth, he finds that he is bound to a "Guardian System", which seems to be extremely powerful, but in fact it consumes health points every time it is used. What's even worse is that the dark forces that were once sealed by him are awakening in various comic worlds, and his biggest competitor, "Zero", who is also a candidate for the Guardian, is eagerly trying to take away his system authority. On the surface, Tang Jing is strategizing, wandering leisurely in various two-dimensional worlds, conquering various heroines, and resolving world crises; in fact, he is panicking inside, and he is frantically testing on the edge of life and death in every battle. In order to survive and protect the love in his heart, he must complete guardianship tasks in various comic worlds and uncover the truth about his death in his previous life, as well as the ultimate conspiracy hidden in the dark. But every time he protects, it means a new sacrifice... This time, can he come back alive?
