Shunpei Closer suffers from low self-esteem and appears to lack any particular talent. His teddy bear, Hyde, was a present from Shunpei's grandfather, Alsyd Closer, who served as the King of Sorcerers. Following a mysterious assault, Shunpei discovers that he has become the target of sorcerers worldwide. With Hyde acting as his primary protector and instructor, Shunpei must learn to build self-confidence and wield the inherited magic to fight the dark forces now threatening him.