In the recurring 'Summer of Anu,' a period when demons lose their strength due to the sky-god's blessing, the nation of Uruk embarks on a campaign to conquer the tower and quell the demon threat. As they advance through the tower, aiming for the higher levels, the Uruk army seizes the opportunity of the third Summer of Anu to vanquish the fearsome monster Druaga. Amidst the soldiers, a city named Meskia thrives on the tower's ground floor, attracting not only military forces but also daring adventurers seeking the legendary Blue Crystal Rod rumored to lie atop the tower. With diverse motives intertwining within the tower, including hidden treasures and conflicting interests, the unfolding events in this extraordinary summer remain uncertain and complex.