Lightning bolts flashed in the dark clouds while it was raining heavily. On the ground, a grand building that looked like an arena was looming in the lightning bolts.
The center of the huge arena covered about 1 square mile. Weapons, sabers, Spears, swords, and halberds were scattered on the ground in different sizes. The arena was surrounded by a ring of stands made of rocks. In the lightning bolts, some mysterious runes were looming on the ancient rocks.
