Three years after the crisis in the antimatter dimension subsided, in the Quantum Botanical Gardens of the planet Eternal Vow, Xing Xuan was using the threads of time to weave the veins of a mutated "Memory Rose." These flowers, nurtured by emotional entropy, change color based on the observer's memories. At that moment, the rose at her fingertips suddenly faded from golden red to a dull, grayish purple, tiny ice crystals forming on its thorns. A calico cat darted out from the vines, the remains of its collar unfolding into a scanner, its gear eyes flashing an ominous red. "Warning! Resonant frequency of the star string detected... Quantum collapse underway!"

Xing Xuan's thread of time suddenly stretched, tearing a thin crack in the void. Following her intuition, she rushed to her brother's studio, only to find the entire building enveloped in layers of silver-purple code. Through the translucent membrane, she saw Xing Xian curled up in the center, her photon paintbrush suspended in the uncontrolled data stream, altering the paintings on the wall one by one—the once smiling mechanical dragon sprouted twisted bone spurs, and the fire-breathing cloud whale transformed into a black hole that devoured light.

"Brother!" Xing Xuan's thread of time pierced the cocoon, only to be deflected by some icy force. Within the cocoon, Xing Xian slowly raised his head, a strange matrix of code flowing in his pupils. "Don't come near... These monsters will hurt you." His voice was a cacophony of electronic synthesis. The temperature in the studio plummeted, and the unfinished painting began to spontaneously combust. Countless tiny entropic shadows emerged from the ashes.

When Xiao En arrived, the roots of the Tree of Love were pulsing furiously, drawing the entire planet's emotional entropy into a protective barrier. Her topological hairpiece projected the shadows of Lu Li and Lin Yue, their resonant frequencies weaving into a web in the void. "It's residual contamination from the antimatter dimension!" Xiao En's threads of time entangled the runaway data stream, only to discover that the Xingxian code stream was entangled with the indigo veins unique to dark matter. "Those entropic shadows have planted a self-destruction program in his subconscious..."

Xing Xuan suddenly recalled the argument three days prior. Back then, Xing Xian had hidden his latest painting, "Super-Omni-Dimensional Guardian," in a safe. The only characters on the painting were Xiao Entropy and Xing Xuan, while he himself had become a transparent shadow. "You're clearly the most powerful!" her furious roar was still ringing in his ears. "Why do you always hide yourself?" Watching her brother struggle in agony within his code cocoon, a golden-red guilt coursed through him, threading through time.

The cocoon suddenly ruptured, sending countless monsters, manifestations of Xingxian's fear, swarming out. The mechanical dragon no longer spewed starlight, but instead emitted antimatter rays that corroded Emotional Entropy. The black hole whale opened its maw, sucking the surrounding spacetime into a twisting vortex. Little Entropy and his parents' consciousnesses formed a triangular formation. The silver-purple code shield and the golden-red time web temporarily blocked the attack, but as they reached the monster's core, images of Xingxian's childhood, isolated by the other children due to uncontrolled power, surfaced.

"Let me do it!" Xing Xuan broke free from her mother's protection, the threads of time transforming into countless strands of soft light. She dodged the monster's attacks and rushed directly towards the curled Xing Xian. When her fingertips touched her brother's icy code flow, the whole world suddenly fell silent. Deep in quantum space, she saw countless afterimages of Xing Xian, each repeating the same words: "My power... only brings destruction."

"Remember the first mechanical butterfly we created?" Xing Xuan's voice trembled, the threads of time gently wrapping around the afterimages. "It used its gear-shaped wings to repair the energy cracks in Andromeda. You said at the time... art and protection are the same light." The code flow of Xing Xian began to loosen slightly, the rampaging monster's movements became sluggish, and warm starlight began to leak from the black hole whale's huge mouth.

Xiao En suddenly realized the key. She summoned her parents' consciousnesses, and the three's resonant frequencies were no longer used for attack, but instead transformed into a gentle energy field. "We all forgot," she said, her time threads intertwining with Xingxuan's. "The most powerful resonance is never the accumulation of power, but the resonance of the soul." When their consciousnesses sank into the core of Xingxuan's code, they discovered a Klein bottle-shaped cage hidden there, through the mouth of which dark matter contamination was continuously injected.

Xing Xuan poured her most precious fragments of memories into a Klein bottle—the first talking star her brother drew for her, their shared battles in the antimatter dimension, and countless heartwarming nights spent scribbling together. Xiao En channeled his parents' consciousness into a key, Lu Li's code stream decoded the cage's structure, and Lin Yue's timeline healed the trauma of her memories. As Xing Xian trembled and touched those memories, the Klein bottle suddenly erupted in dazzling light, and the dark matter contamination melted away like ice and snow.

The final King of Entropy and Shadow transformed into the form Xingxian feared most: a transparent being forgotten by everyone. But this time, Xingxuan took his hand, with Xiao Entropy and his parents flanking him. The four of them, with their resonant frequencies, woven into a gigantic holographic projection in the void. The projection played back every moment they had shared, from their childhood graffiti adventures to their current battles side by side, each scene imprinted with a strong sense of entropy.

"You were never a shadow." Xingxuan's threads of time and Xingxian's code streams intertwined, forming an eternal knot. "You are our palette, the light that makes all stories brilliant." As these words fell, the King of Entropy and Shadow roared in despair, transforming into countless tiny points of light that merged into the starry sky. Xingxian's photon brush returned to his hand. This time, he painted not a monster, but four people laughing under the Tree of Love. Every detail in the painting shimmered with a warm silver-purple light.

After the crisis was resolved, a new astronomical wonder appeared in the sky above the planet Eternal Vow. Beside the original tricolor constellation, a nebula emerged, its shape shifting constantly. It sometimes resembled a Klein bottle, sometimes a giant photon paintbrush, and finally settled into the outline of four people holding hands. Scholars at the Transdimensional Academy named it "Heart Soul Constellation" and added a new chapter to their textbook: "On the Decisive Role of Emotional Entanglement in Quantum Resonance."

Late at night, Xingxian opened the safe in his restored studio. He took out "Super-Dimensional Guardian" and gently altered it with a photon brush. The transparent shadow in the painting gradually became clearer, eventually transforming into a young man holding a palette and a bright smile. Xingxuan pushed open the door, holding a newly blooming memory rose, its petals shimmering with a blend of golden red, silver and purple. The calico cat leaped onto the easel, the remains of its collar projecting the latest monitoring report: "New resonant frequency detected... Evolved into a fusion form."

Little Entropy stood atop the Tree of Love, watching her children chase and play under the starlight. Her topological hair ornaments resonated with her parents' consciousness, outlining a family totem that transcended time and space. In the distance, a projection of a hyperdimensional consciousness loomed, this time no longer a mysterious presence, but a smiling witness, forever engraving this heartwarming scene in the universe's memory. And this story of love and redemption, like an eternal quantum flame, continues to illuminate the unknown journey in every corner of the hyperdimensional universe.