The Beloved Little One Saves the World [Quick Transmigration]

World One: The Tree of Life is gradually withering, and its final fruit takes shape. Born amid a thousand years of anticipation from all the elves, he is the very last elf. The Elf King holds the elf child in his arms. As the Mother Tree withers, the elves' hope for life begins to glow anew. World Two: In heavily polluted waters, beautiful merfolk gradually grow ugly claws and fangs. The merfolk lose their minds and slaughter one another, turning the sea red. Then one day, a lovely little merperson hatches from a dead egg. The instinct to protect their young awakens the merfolk's reason. They use their dangerous claws to catch the tenderest fish and place them at the little merperson's lips. That night, a long-forgotten song echoes through the sea. The little merperson gradually falls asleep to the moving melody... Reader's Guide: 1. A real little one who does not grow up during the story. 2. A family-bond story. Theme: Everyone has a bright future.