Li Chengfeng, an otaku programmer, gained the ability to travel between the real world and the fantasy world in an accident. During the day, he works as a programmer in a cubicle, and at night, he fights monsters and upgrades in other worlds. When his childhood friend, female colleagues, comrades from other worlds and enemies are involved in this turmoil, the protagonist has to navigate multiple clues such as the workplace, the palace, the dungeon, technology and magic, etc. Multiple story lines are intertwined: behind the scenes, there are black hands from the two worlds controlling destiny, Queen Irina is trying to subvert the world order, and Li Chengfeng gradually discovers the truth behind the ultimate crisis of the two worlds while fighting wits, harvesting friendship and love, and making crazy complaints. The whole book has a high-energy plot, a tight rhythm, and constant humor, and finally ends with a big choice between fate and self-the salvation of the two worlds and personal growth resonate at the same frequency.