Waterdrop

Thirteen-year-old Su-yeon is left alone after her grandmother passes away. Faced with being placed in a childcare facility if she can't find a guardian, Su-yeon notices a couple who catch her eye. They are adopting a seven-year-old girl named Seon-yul and are immersed in happiness. Su-yeon tries to get close to Seon-yul, but finds her behavior somewhat suspicious. Waterdrop unfolds a panorama of ever-changing emotions. Starting as a tale of a pitiable orphan, it evolves into a sharp-edged survival mystery of a cunning child, equipped with piercing characters and dialogue, and unexpected dramatic twists. Ultimately, it poignantly confronts the weighty questions of protection and responsibility. - IMDb