In the fantasy world, many gods gather at Zuokai Mountain (Chuangjie Mountain), which is divided into seven layers. However, after the evil god Doguda ruled this world, his evil followers guarded the key points of each layer of Zuokai Mountain. Darkness fell, and even the beautiful rainbow turned gray. Fourth-grade elementary school student Senbu Watano entered the fantasy world under the call of the gods. He manipulated Ryujinmaru and his friends, such as Tiger King, Sword Master Shibaragu, and Shinobu Himiko (Simige), to restore the light of Zuokai Mountain and start a series of fierce battles with Doguda's dark army. This film is the first part of the "Magic Hero Legend" series.