Vanishing Time: A Boy Who Returned

After losing her mother, a young girl named Soo-rin finds herself inexplicably left behind when her friends vanish in a mysterious cave. Days later, a man claiming to be one of her missing pals appears, revealing that he's been trapped in a state of suspended time, and the only one who believes him is Soo-rin. As the authorities and townspeople turn against him, Sung-min becomes a fugitive with a desperate quest for truth, leaving Soo-rin questioning what's real and what's just her imagination.