Sol and Merry went to the main Purple Skull tower, located on the Atlantic coast. They didn't need to enter, as Atlantic, the American Purple Skull leader and Skull's deputy, was sitting relaxed on the beach, silently drinking mint lemonade. Sol looked up and said, "You've taken over the world. You've killed children, women, and men, and stolen everything. And now you're just relaxing?" Atlantic didn't reply, but they entered an alternate world—an upside-down world that only Sol entered. Atlantic and Merry didn't enter either. Sol looked around at the uniformly colored upside-down world. It was an upside-down purple world, and luckily, Sol managed to grab onto something to stop himself from fallIng. The sky was beneath his feet, and the earth was above his head. Then a man In a white suit appeared and said, "Hello, Senior, in the Alone Go world. I'm Magician, Atlantic's assistant, and I'm here to kill you." A battle ensued between Sol and Magician, a close contest where their strengths were evenly matched. The obstacle was Magician ability to move around the upside-down alternate world as if it were his own. This is because the world of Alone Go is not the Atlantic's world, but the magician world. They continued fighting with equal strength. At the same time, in the Sculptor's house, the Sculptor used a strange technique. He summoned a second-level portal, a technique that could even transport people in and out of the alternate world (If the first-level portal could transport people in and out of the alternate world, Sol would have used it to escape). The Sculptor looked through the portal and saw Sol struggling, so he used an even stranger technique. He painted lightning with his brush, and the lightning became real, killing Magician and preventing him from regenerating. When Magician died, Sol returned to the normal world, and when Mary rushed to hug him, Atlantic silently summoned his alternate world, and Sol entered It. Only Sol did enter the Atlantic's world. At the top, there were storms; in the middle, sea monsters; and below, dragons swam. This is the world of sea monsters; whoever enters it does not leave. This is how the Atlantic described it to Mary. In the world of sea monsters, Sol began fighting the sea monsters, but they were strong and numerous. Here, Sol revealed one of his secret techniques. Sol summoned his Spirit Weapon, naming it "Diamond In the Sky." When a monster tried to devour him, Sol detonated it and then sliced through the remaining monsters with his axe, even tearing the dragons apart. Outside, Mary wept, begging Atlantic to at least come inside and give her Sol's body, believing him dead. Atlantic entered and was shocked to find Sol holding his axe to Atlantic's neck. Reacting swiftly, Atlantic used an explosion to propel himself back and summoned his weapon, "The Master of My Sea." The fight began when Atlantic summoned the Queen of the Sea Monsters to devour Sol, which she did. However, after Sol was consumed, he used his Explosion Ball technique to blast the Queen's head off. He then ascended to the top of the head where Atlantic stood, and they began exchanging blows: Sol's axe against Atlantic's weapon, "Lie o Mano," a weapon used by the Native Hawaiians. The clash continued until Atlantic summoned his Level 25 Fist and struck Sol, destroying his left half, Sol said, "You know, it's not a shame to learn from your enemies, and I learned the Transformation Technique from Kabuta's intentions." Sol shouted, "Dear Planet!" and transformed into a human-like form, but resembling the gas giants with hurricanes and storms inside. Sol attacked Atlantic and cut off his arms. Becausee the Alternate World Technique is a hand Technique, the Alternate World was destroyed, and Sol and Atlantis left. Atlantic couldn't regenerate his arms because Sol used the Spirit Weapon Technique to cut them. After Sol and Atlantis left the Alternate World, Sol went to Skulk's office and said, "Skulk, I came here to defeat you and rid the world of your evil." Skulk said, "I'll take care of you later." Sol said, "Later?! What do you mean by later?" Skulk said, "I mean, I have a festival to perform." Skulk jumped out of the window and summoned the Level 2 Gateway Technique, which allows him to travel between Alternate Worlds. Skulk said, "See you at the festival."
