In 2302, after the First Omnic War, due to internal corruption and power struggles, the "Dawn Watch", the vanguard force against the omnics, was forced to disband. After the leader disappeared, some team members re-established a private security agency "Dawn Watch Security Company" and continued to be active on the earth. They tried their best to find clues to find out the real reason why Dawn Watch was disbanded and the reason why omnics attacked humans.