If you loved The Orphan Brother, try Erzählung einer weißen Schlange
Eine Brücke zwischen einem Film, den du schon gesehen hast, und einem, den kaum jemand kennt. Das teilen sie, und was der zweite macht, was der erste nicht macht.
Was sie teilen
Both films are directed by Taiji Yabushita, and they sit in Animation / Fantasy territory. If that's the register that drew you to The Orphan Brother, the second film will land in a comparable space — through a different lens.
What Erzählung einer weißen Schlange is
Chinese folktale if Disney produced it. A serpent goddess, once a boy's pet, seeks him out in human form. Her devotion is tested by a wizard and slapstick panda sidekicks. The animation marks a key moment in anime history.

