Ushio & Tora is a Japanese animated series based on the Japanese
comic of the same time. Its protagonists are a human boy named Aotsuki
Ushiro (Sasaki Nozomu) and a bestial spirit named Tora. Ushiro is
responsible for accidentally releasing Tora from his family shrine,
where the spirit was imprisoned by Ushiro's ancestor with a magical
spear, but is forced to work together with Tora when more monstrous
spirits are drawn by Tora's release from his imprisonment.