The endless sea area spreads, and the Wanyu Empire stands at the top of the three clans' co-governance. Navigators are the only glory in this sea area, and the spiritual scriptures and natal spirits are the foundation for everyone to settle down and live.
The protagonist lives on his sister's ocean-going ship, doing the most trivial chores all day long. His natal spirit is a weak dream-creating jellyfish, which only works on intelligent creatures. Facing countless unintelligent sea beasts in the sea, he cannot even make the most basic seal. In the eyes of others, he is a complete spiritual waste.
His elder sister is a mighty ocean captain, and his younger sister is a stunning S-class genius in the academy. He is the only one who lives in the shadow of his dazzling family, silent and insignificant.
No one knows that an inconspicuous relic left behind after the death of his parents contains a taboo that the entire sea area dare not touch - the twelve-ringed broken-wing holy angel, a slave of heaven imprisoned by the shackles of heaven.
