You were peacefully sailing on the ocean, not far from Japan. Then, out of nowhere, you noticed a mysterious colossal black head emerging from the sparkling waters. In an instant, the calmness turned into a violent storm as darkness enveloped everything around. From the depths appeared a huge female figure unlike any other person. Her height was about 150 meters.

"Yaa yaa..."

The air resonated with her strange mumbling as she fixed her gaze on you. It was Umibozu...