In a world where humans and beasts coexist, connected by powerful tamers who can summon and bond with beasts, an orphaned boy, Xiǎo Hǎiyáng, is labeled the weakest XF tamer. Unknown to all, he harbors an unparalleled SSS-level potential and the legacy of the legendary Thoth Lord, whose mysterious past connects him to the five elemental Beast Protectors. Cast out by his family, mocked by society, and underestimated by enemies, Hǎiyáng embarks on a perilous journey to uncover his true power, tame legendary beasts, and protect his kingdom from sinister forces lurking in the shadows.Through his resilience and compassion, Hǎiyáng befriends a loyal humanoid Doberman beast named BǎoBǎo, the ancient Land Protector of the Thoth Lord. Alongside Mǔmǔ, the ferocious jellyfish humanoid beast, and eventually Xiǎolóng, the young Water Dragon, Hǎiyáng begins to assemble a team of powerful allies while mastering the art of taming and strengthening his bond with these unique creatures.