The Little One Successfully Saved the World

[The story is complete!] [Blurb] After Xia Nuandong, a Blue Star child, died of illness, a big orange cat who loved children, and was actually a System, brought him to the Fantasy Universe. The Fantasy Universe is a pinnacle civilization among advanced universes. It is home to ten fantastical races: the Machine Race, Insect Race, Beast Race, Demon Race, Blood Race, Angel Race, Elf Race, Sea Race, Dragon Race, and Human Race. But after the Annihilation Universe invaded and the gods sacrificed themselves, the universe lost its vitality. Every race could only survive by competing in the [Life Trials] to earn gifts from the gods and keep their people alive. Everyone in the Fantasy Universe loves children, to the point of obsession. So when they saw little Dongdong, they all went crazy. Xia Nuandong is the only child in the trials, and the hope and miracle that can save this world. As he brings hope and miracles to another world, his beloved home and the country he loves most also receive a tremendous miracle. [Preview of the ten trial worlds] Trial World One: Mechanical Wasteland [Cleared] Though its steel body has been destroyed and its core program defeated, streams of data and fragments of code live on in the world. On the wasteland, the little machine child pieced together a steel body and used the melody of a birthday song as code to awaken the slumbering mechanical heart. Trial World Two: Dead Hive [Cleared] Beneath the lifeless insect hive, drained of energy, lie insect eggs stripped of vitality. But the miracle of life will never perish. The little dragon-water-crystal butterfly planted a new hive in the dead zone. His body heat awakened the eggs, and the Insect Queen, gone for ten thousand years, opened her eyes. Trial World Three: Barren Seabed [Cleared] The once-bountiful seabed has withered. The shallows are lifeless and the deep sea has become a forbidden zone, yet the ocean's cradle is still nurturing new life. The little sea demon carried the conch he had found and sounded it like a horn, guiding the lost sea creatures. With his sea-demon voice, he brought the silent cradle to life. Trial World Four: Beast Prison [Cleared] When reason was overwhelmed by madness, the former Beast Star became a cage. Even so, the prison remained a refuge for the rampaging beasts at the end of their road. The little panda brought wounded, rampaging beasts back to his den. He fed them every day, stroked their fur, and told them stories with little squeaks. The beasts, who had lost their reason and memories, began to remember the past. Trial World Five: Withering Mother Tree [Cleared] The Forest of Life has been reduced to dead trees, and the withered Mother Tree weeps in silence. But its seed has always slumbered inside an elf. The little elf planted his bonded plant on the withering Mother Tree and nourished it with love, sunlight, and morning dew. With a crackle, the seed sprouted, and a new shoot appeared on the dying tree. Trial World Six: Blood-Dissolving Calamity [Cleared] When blood became a deadly poison and flowers that fed on blood dissolved bodies, the blood coffins sealed beneath those flowers held the antidote. The little vampire sharpened his pointed fangs, pulled up the blood flowers, and opened the blood coffins. His fangs, unable to pierce skin, awakened the slumbering progenitor of the Blood Race. Trial World Seven: Holy Light Extinguished [Cleared] The everlasting daylight of the Holy Court had lost its shining light. The spark that sustained the Holy Kingdom had long since gone cold, but embers still glowed beneath the ashes. The little angel found the dying spark among the ashes. He used naturally shed feathers to kindle the flame, and in the cold, dark Holy Court, the sacred fire began to sing joyfully once more. Trial World Eight: Hell's Death Knell [Cleared] Strange sounds shook the abyss. Demons died amid their wild revels, never realizing that the sounds were the Demon Nest's anguished cries as it protected them. The little slime filled the Demon Nest's countless holes and guarded the unborn demons. The day the demons opened their eyes, the abyss came back to life. Trial World Nine: Dragonblood Grows Cold [Cleared] Frost flowers formed in the once-scorching blood, and eggshells meant to cradle new life became prisons. Yet beneath the ice, a young dragon's heart still beat. The little dragon breathed fire, melting the ice and warming the dragon egg. When a young dragon's cry rang through the universe, the lost heat of its blood would finally return. Trial World Ten: Fallen Heroes [Cleared] The heroes are dead, their memorial stele has collapsed, civilization has been severed, and faith has vanished. No one knows that the fallen heroes still watch over their people. The little human uncovered the heroes' past and brought back those lost in the river of history. Civilization and its legacy returned to the world, and the heroes' songs will live forever! ● A child-centric story. The protagonist remains a child until the end. No romance, only familial affection all around. ● A healing story. The child is everyone's darling. Lighthearted and angst-free, with a distinctly simple style. ● The protagonist has an enormous golden finger. If you think what the child does is beyond what a child could manage, don't doubt it: that's the author's cheat for him! ● The overall pacing is fairly slow and leans toward everyday life. ● Ten trial worlds in total, with lots of live-stream comments. ● I'm terrible at writing blurbs and coming up with titles, so please give the story a look! ● Please read in harmony and don't stir up trouble. Let's enjoy reading and have fun writing together! ● 70% anti-piracy setting, with a 48-hour delay. Blurb written on 2022.04.30, added and revised on 2022.06.26. Theme: Hope and miracles will always exist.