In the early days of the recovery of spiritual energy, strange phenomena occurred frequently on the earth and demons breed. The male patron Gu Yunzhou, a seemingly ordinary librarian, inherited a weird shop left by his family. He accidentally discovered that this shop was actually a "dimensional exchange" connecting all the worlds, and he became the only "dimensional merchant" in all the worlds.
Gu Yunzhou's customers are all over the world of immortals, magic planes, and the abyss... He exchanged instant noodles for peerless swordsmanship, glass beads for dragon bones, and antibiotics for the life springs of the elves. While his own strength increased rapidly, he also continuously upgraded the exchange, expanding from a small shop to a temple suspended in the void.
On the earth, the revival of spiritual energy is intensifying. Major hidden families, awakened organizations, and even monsters from other worlds have appeared one after another, fighting for resources. And Gu Yunzhou, relying on the magical weapons, elixirs, techniques and powerful allies traded from all realms, is still an ordinary person on the surface, but secretly controls the direction of the world. He built his own power, conquered mythical creatures, suppressed evil demons, and became the "strongest relation" that all top powerhouses must respect.
In the end, when the "natural disaster" that swept the entire universe - the void insect wave came, all planes faced the crisis of destruction. Gu Yunzhou activated the final form of the exchange, commanded all realms, and gathered all the gods, demon kings, immortal emperors, and giant dragons who had traded with him to form a coalition to fight against the doomsday natural disasters, become gods in one battle, and become an eternal legend above all the heavens.
