The moment Xia Zichen stepped into the memory recycling bin, his star pattern suddenly burned intensely. Densely packed glass jars floated around him, each containing a myriad of memories: a love letter torn up by a young girl in the rain, an old man's final smile before dying, an astronaut's gaze back before losing contact with Earth. Each jar trembled slightly, as if pulled by some force, trying to break free.

"Welcome to the 'Forgotten Pawnshop,'" a hoarse voice boomed from the shadows. Old Zhang instantly swung his ink-stained chains, but they froze into ice before reaching the source of the sound. A humanoid creature, tangled in faded film, emerged from the darkness. Countless fragments of memory swirled in its hollow eye sockets. "I'm the administrator, 'Echo,' collecting discarded 'what ifs.'"

Lin Yue gripped the double helix pattern vigilantly and found that the scar on his neck was glowing: "What is your relationship with the Administration? Why are the memory fluctuations here so weird?" Huiying chuckled, and the film body suddenly unfolded and turned into a huge screen, showing a shocking picture - the top executives of the Space-Time Administration are throwing memory fragments into a giant furnace, and what is burning in those furnaces is the fire of "possibility".

"The Scythe of Entropy is fueled by the possibilities humanity has given up," Huiying's voice was filled with sarcasm. "When people no longer believe in 'what ifs,' the Authority will use the Scythe of Entropy to harvest all parallel universes and return everything to 'absolute order.'" Ah Fu's oracle-inscribed sword suddenly let out a mournful cry, and an ancient curse emerged from the blade: "Forgotten possibilities will eventually turn against their creators."

At that moment, the ground at the Memory Recycling Depot began to crack, and countless black vines burst forth, entwining the floating memory canister. Blood-red flowers blossomed from the vines, their petals bearing the Authority's emblem. "They're here," Huiying slid a roll of film toward Xia Zichen. "This is the 'Memory Key' left behind by the first guardians. Only by gathering all the devoured 'First Days' can we unlock the seal of the Scythe of Entropy."

Xia Zichen unfolded the film, revealing the lost memory of the night of the fire—a black-robed figure carrying the young boy into the basement, his shadow faintly visible in the light of the prayer wheel. "So you are..." Lin Yue's words were interrupted by a sudden energy shockwave. Law enforcement officers from the Spacetime Administration stepped out of the screen, their entropy sickles greedily absorbing the surrounding memory energy.

Old Zhang threw out a candy wrapper bomb, and the black cat Raven transformed into an inky shield to protect everyone. "These guys' bodies are in the entropy field, so normal attacks are useless!" Xia Zichen gripped the memory key tightly, discovering that his star pattern resonated with the film, allowing him to see the memory holes in the enforcers. "They're afraid of forgotten memories!" He swung his sword and stabbed an enforcer in the back. The moment the blade penetrated, the opponent's body began to collapse, transforming into countless memory bubbles.

However, more enforcers surged in from all directions, and the shadow of the Scythe of Entropy gradually materialized. Huiying's film body began to disintegrate, and he threw his last scroll of memories to the crowd: "Go to the Memory Embryo Bank! There lies the 'Egg of Possibility' from the birth of the universe. Only it can resist the Scythe of Entropy..." Before he could finish his words, Huiying was devoured by the Scythe's light, leaving only a disintegrating pile of film on the ground.

Lin Yue's double helix pattern suddenly merged with the memory key, and countless parallel time and space images were reflected in her eyes - in one time and space, Xia Zichen became the chief of the Administration; in another time and space, Lao Zhang was a hunted memory smuggler; and in the deepest part, there was an Eden built of "possibility", where people used memory to create never-ending miracles.

"We can't let the Scythe of Entropy succeed." Xia Zichen embedded the memory key into the Star Pattern Sword, and the sword body burst into unprecedented light. "True order is not to erase possibilities, but to protect every right of 'if'." As he shouted, the glass jars of the memory recycling station exploded one after another, and the imprisoned memories turned into a torrent of light, rushing towards the entropy barrier formed by the law enforcers.

Under the impact of the memory energy, a crack appeared in spacetime. A shadowy figure in black emerged from the crack, holding a shimmering egg in her hands—the "Egg of Possibility" from the Memory Embryo Bank. "It's time to let the universe remember that it was meant to be filled with countless possibilities," the figure in black said with relief, handing the egg to Xia Zichen. "Take it with you, and end this war over memory."

When the Possibility Egg resonated with the Memory Key, the entire Memory Recycling Station began to reorganize. Cracks appeared on the Entropy Scythes of the Enforcers, and the Authority's emblem shattered in the light. A portal to a new time and space appeared beneath Xia Zichen and the others' feet. From behind this portal emanated the anticipation and yearning of countless people for "possibility."

Old Zhang bit into a new lollipop, and the raven perched on her shoulder. "Next stop, the Memory Embryo Bank. I heard the guards there are made up of the purest human curiosity." Lin Yue squeezed Xia Zichen's hand, and they smiled at each other. Ah Fu gently stroked the oracle-bone sword, and the curse on the blade transformed into lines of blessing.

The moment Xia Zichen stepped into the portal, he seemed to be sucked in by a powerful force. At this moment, he subconsciously looked back and his eyes fell on the ruins of the Memory Recycling Station.

Amidst the ruins, what should have been a desolate landscape, a strange tree now grew. This tree wasn't made of ordinary wood, but rather a patchwork of countless memory fragments. These fragments shimmered faintly, as if telling stories of the past.

The trunk is thick and twisted, its branches stretching in every direction, as if reaching for every parallel dimension. Each leaf is a different shape and color, some resembling a smiling face, others a tear of sorrow. The leaves rustle in the wind, whispering unforgotten "what ifs."

At the top of the tree, Xia Zichen saw three shadowy figures standing side by side. One was the First Guardian, draped in a black robe, his face obscured by shadows, his true form unclear. Another was a man in a black robe, shrouded in black, a mysterious and majestic presence. The last was Hui Ying, his figure ethereal and transparent, as if ready to dissipate at any moment.

Although the three figures were only illusory, their smiles were incredibly real, brighter than any memory. They were smiles filled with hope and warmth, as if telling Xia Zichen that no matter what happened in the past, the future was always full of possibilities.