Undersea Ruins: Hidden Secrets

This is a future world where humans spread throughout the universe. This is a future world that hides the secrets of the universe. This is also a world where all elements are controlled by humans. S, szp agent organization young teenage agents. Became a temporary agent at the age of 11. After the service period passed, his memory was wiped. Until one day, the big boss once again assigned him to return to the organization to perform tasks. Slowly, he discovered a secret that no member of the organization knew. Finally, he finally discovered the secret, and this secret turned out to be... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.