Held under the blazing sun, this unique sports festival features a total of 15 men, ranging from pretty boy types to rugged manly men. The opening ceremony kicks off with sexy radio calisthenics in skimpy bikinis, followed by the shocking spectacle of a butt tower and explosive enema sprays. This event includes nine wild and lewd competitions designed to keep the excitement at maximum. This volume covers from the opening ceremony through the fourth event. The first event is an obstacle race packed with traps, the second is a tug-of-war with vibrators inserted into the participants' anuses, the third is an enema relay with bare buttocks fully exposed, and the fourth is a thrilling oil wrestling match between Kenji and Daichi. Who will emerge victorious? Under the clear blue sky, the energetic and rock-hard erect athletes ignite a passionate, hard-core sports festival!