Dragon Heart: Adventures Beyond This World

Ryusuke, a Tokyo resident, spends his summer vacation in Tokushima where he reunites with his cousin Tomomi. During a visit to the Anabuki River, a strong current sweeps them away, and they're rescued by a dragon, which takes them to a mysterious old man. The old man informs Ryusuke and Tomomi that they're deceased, but can be revived if they complete a task in the spirit world: finding their life's mission.