Start by Selling Particle Beam Weapons at a Salted Fish Sale

Unlocking the system, Qi Yu has been silently guarding Blue Star for 5 years. In the past time, humans knew nothing about the crisis. He is about to take a spaceship to an outer galaxy to collect rare elements. During this period, in order to enable human beings to protect themselves, Qi Yu wanted to "hand over" a complete set of defensive equipment such as particle beams, but was caught as a lunatic. He simply put the salted fish on public sale, clearly marked the price, and automatically picked up the goods after payment. Particle beam equipment: unit price 2 billion Laser**: 1.5 Billion Stellar**: 3 billion … The day after Qi Yu left, large-scale interstellar weapons appeared in the sky above Blue Star. Humanity panicked. Only then did someone think of raising funds to buy sky-high equipment to resist the invasion. When Qi Yu returned three months later, the transaction volume had reached 10 trillion... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.