Gou Lingfeng (Xu Zhisheng), who is born with a fierce appearance but kind-hearted, dreams of becoming a hero. He learns the magic martial arts by mistake and enters the world. Amid the prejudice and difficulties of the world, he moves forward towards his dream. On the way, he meets Ma Landan (Fan Jingyi), the "Hundred Flowers Knight" of the Poison Fairy Valley, and Zhuge Heng (Wang Shuai), the son of the Sword Saint. He travels the world with them side by side and solves various bizarre cases. Gou Lingfeng gradually understands the truth that "there is no size of hero, and no good or evil in martial arts", and finally becomes a true hero.
