Solve the mystery of metrons @ BTB
The town of engineers located in the middle of the snow-capped continent, Albahein, is famous for having Leonardo, the world’s best engineer.
The lantern is such a grandson of Leonardo, but dreaming of making a machine that can fly through the sky, he was dreaming of Leonardo. One winter day. The lantern, along with his friend Nene, finds a mysterious machine that flies through the sky at high speed during an ornithotester test flight.
And as he follows the machine and sucks into a strange hole, he falls into a mysterious place where no one has ever discovered it …
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