Chapter 9: The Teacher's Teachings
Astra and his group successfully reached Tartarus and saw a giant ocean. They split up to fight the high-ranking Titans: Yakari against Iapetus, Natch against Hyperion, Satya against Crius, and Astra against the Titan of Time, Kronos. Yakari fell from the sky and landed right on Iapetus's face. Iapetus immediately fell, and Yakari said, "JACKPOT." Iapetus tried to get up, but suddenly Yakari activated his domain, "Domain Expansion: THE GAME." Yakari's domain was instantly active. Previously, when fighting Osiris, Yakari could not activate his domain because it was too large, but this time Yakari had trained his domain, and the activation time had been accelerated as well. Iapetus continued to attack Yakari inside his domain, but unfortunately, he violated one of the rules in Yakari's domain: no attacking before the game begins. As a result, Yakari automatically won, the domain shattered, Yakari gained unlimited Rahsk, and Iapetus's power was confiscated. Iapetus's death was certain; once he died, Yakari's unlimited Rahsk also ran out. Natch entered Hyperion's shadow and kept pressing him. Finally, Hyperion decided to use his power—the sun—but unfortunately, shadows grow stronger when exposed to the sun. In the end, Hyperion was utterly defeated. Satya vs. Crius; however, here Crius, who was tired of Tartarus and afraid of being imprisoned again, ultimately committed suicide. Now it was Astra vs. Kronos. Although Astra could walk while Kronos stopped time, Astra was still very hard-pressed until, during the final attack, he was able to withstand Kronos's strike with just one hand. Astra emitted a white aura, but Natch realized it wasn't the power of an aura. Inside Astra's mind, he was remembering his teacher's words from the past. Astra immediately lunged forward and continuously beat Kronos without mercy until Kronos was defeated. The other Titans, seeing their leaders fall, were instantly terrified, but Astra immediately killed them all. They returned to the Underworld and saw Selina and the others riding Leviathan, coming to pick them up.
Chapter 10: Gigantomachy
Kintaro and his group arrived at Pallene and faced the Giants. Kintaro faced Alcyoneus, while the others faced the other Giants. Kintaro, with his katana, had fun with Alcyoneus. Kintaro killed him repeatedly, but he kept regenerating. Within 1 minute, Alcyoneus had died about 82 times. Finally, Kintaro got bored and threw him far out of Pallene, so far that he almost hit the hall where Zeus was located. However, Kintaro appeared and quickly tore him to pieces. Kintaro rapidly sped back to Pallene; on the way, he encountered Porphyrion and immediately tore him to pieces as well. Kintaro returned to Pallene and easily shredded the Giants with great ease and speed. Then, they returned to Olympus and saw Selina, Astra, and the others riding Leviathan, and they joined them on board.