Next, there were several regional shields that shrouded the sea city, divided the city into parts, and covered it. The strongest one was a substance-like aquamarine magic shield that was held up by more than 100 stone pillars erected around Cage Island.
The aquamarine magic shield was extremely different from ordinary magic shields which would burst like a bubble once the attack spells it blocked exceeded the limit. However, the aquamarine magic shield also had a buffering and transition function whereby the magic shield would absorb it and minimize the power of the attack if the damage suffered exceeded the limit.
The aquamarine magic shield was as strong and durable as the sea, and when the bolts of lightning landed on it, they were like raindrops on the ocean. Attacks that were less powerful were blocked, while those that carried greater power would be weakened by the magic shield.
