Chapter 28: The Ancient Star's Remaining Sound

During the anniversary celebration of the founding of the Interstellar Federation, the observatory on the Crystal Planet suddenly receives a repetitive pulse signal. Xiaoman translates the content of the signal as an ancient nursery rhyme melody, exactly the same as "Little Star" that his daughter sang in kindergarten seven years ago. While overhauling the fleet, Chu Yun realizes that the tail flames of all the engines have begun to flash the same rhythm.

Dr. Shen compares the galactic database and discovers that the source of the signal is from the "Dead Star Zone" - a star field marked as the grave of civilization. Su Wanqing's transparent mech suddenly activated on its own, and the navigator locked onto the coordinates of the signal. While adjusting her equipment, the mechanical girl realized that her energy core was receiving unknown energy.

The fleet encounters a swarm of transparent organisms while traveling through the stardust belt. These cosmic lifeforms, shaped like jellyfish, encased the ship's hull and transformed the control room to resemble an Earth community. Xiaoman communicates with them through the energy of ripples, and discovers that they are the remnants of an ancient civilization called the "Celestial Melody Clan", which feeds on sound waves.

Chu Yun plays "Little Star" with his engine pulse, and the jellyfish swarms suddenly coalesce into humanoid forms. The hologram of Elder Celestial Melody appears: "We are looking for the last singer." Dr. Shen detects ancient music scores sealed inside the jellyfish, the very same piece that was played at the Federation Celebration.

The fleet is introduced to the Broken Planet, the surface of which is covered with the remains of giant musical instruments. Xiao Man needs to activate the chime matrix with ripple energy, Chu Yun strikes the meteorite drum with his mechanical arm, and Dr. Shen tunes the galactic strings. When the wrong sound triggers a space tremor, the mechanical girl uses her energy core to stabilize the frequency.

As "Ode to Joy" resounds through the starfield, the remains of an ancient civilization float out of a black hole. The Celestial Melody Clan gives the Federation the core of their civilization, a singing star seed. Su Wanqing's mecha absorbed the seed energy, and its light wings unfolded into pentagram form.

Upon returning to the Federation, the stellar seed blossomed into a musical nebula in the orbit of the crystal planet. Representatives of each civilization form a cosmic orchestra, and Chu Yun's mechanical arm transforms into a baton. Xiao Man's ripple energy can visualize melodies and paint the lost epics of ancient civilizations in space.

The mechanical girl discovers the gene pool of the Heavenly Melody Race in the nebula, and Dr. Shen initiates a civilization recovery plan. At the end of the festival, the tail flames of all the flying ships play the "Lullaby of the Earth" that transcends time and space.