AD 3074.
The captain of the Rainbow Team, the top military secret, faked his death to escape surveillance and started the "Water Ring Project".
If you want to get the water ring, you must approach the general's secret place, and you must first approach the Xia family's brigadier general.
The brigadier general was too vigilant, so he could only start with his most beloved brother.
Who knew that he would be involved in it instead?
Intention: Stop ignoring those who love you