Made in Abyss (2017)

At the heart of a secluded island lies the Abyss, an immense and perilous chasm teeming with bizarre creatures and untold wonders. It remains largely uncharted, attracting only the most daring adventurers seeking lost relics. Among them is Riko, an aspiring explorer who yearns to uncover the secrets of the Abyss. Her journey takes an unexpected turn when she encounters a mysterious young boy, setting off a thrilling adventure that promises to test her courage and resolve in this enigmatic world.