Shen Qingxuan, the number one sword immortal in the world who once smashed the immortal gate, suffered heavy injuries, lost his memory, and drifted into the mortal world. He accidentally met Suisui, a little girl with a mysterious background, opened a small tavern, and only wanted to raise her safely. However, the immortal clan came knocking, revealing that Suisui is the last pure-blood saint of the immortal clan and the key to reopening the heavenly gate. Ancient immortal remnants used the heavenly gate to cause chaos, and the father and daughter rushed to Kunlun to fight against the immortal emperor's remnant soul. Suisui is unwilling to be bound by the identity of the saint, and the two refuse to be swept away by fate, returning to the mortal tavern to guard the ordinary fireworks of everyday life.