The Tech Smuggler from Dragon Ball to Earth

The protagonist buys a small bead at a secondhand market. It has a pattern resembling a five-pointed star, much like one of the Dragon Balls from Dragon Ball. He makes a wish over it and transmigrates to the world of Dragon Ball. He discovers he can travel back and forth between the Dragon Ball world and reality, but there are limits. Each journey consumes the “star energy” stored in the bead, which must be replenished in specific ways, such as with solar power, electricity, or special energy from the Dragon Ball world.

This is the story of bringing the technology and know-how of the Dragon Ball world back to Earth. Its technology is far beyond that of the real world, with a vast technological gap in everything from Hoi-Poi Capsules to spaceships.

The global power struggle: When extraordinary technology appears in the real world, intelligence agencies from around the world are bound to take notice and compete for it.

Developing Earth's technology. Attracting the attention of the nation. Cooperating with the nation. Fighting foreign forces.

Mythological figures appear in the later stages: Greek and Roman mythology, Norse mythology, Egyptian mythology, Indian mythology, Japanese mythology, Celtic mythology, Mesopotamian mythology, and Cthulhu mythology all make an appearance. The nation cannot withstand them. With the power of Dragon Ball, the nation turns the tide and leads the country into space. This is a story about defeating the invaders.