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Have you ever thought that there is another world behind this world? What exists in the red world? People? Corpse? Demon? Or a demon? It's not important... What's important is, you? Still alive? The bloody door, the resurrection of the world, the strange appearance... My name is Dongchen. I traveled across the world unexpectedly four years ago. I originally thought this world was no different from my previous life, but... I was wrong. Three years ago, strange things revived and crises began to appear around the world, but I... Am an ordinary person? (Fan fiction)

Lin Hai is one of the cosmic travelers, but the difference between him and the travelers is... He will travel through many planes to perform a mission. What kind of mission is it? Let him travel through so many planes? Bite! System task released! The host will travel to the third dimension to hunt down the first species and prevent their invasion! Lin Hai: What? ? ?