Gon, the Little Fox (2019)

When Gon, a playful orphaned fox, finds that young Hyoju has lost his mother, he tries to comfort him and make amends for his own earlier mischiefs by secretly bringing small gifts to the boy every day. But Hyoju doesn't realize who is behind the anonymous gifts, and the two are headed for a heartbreaking climax. Original Story by Niimi Nankichi