At the Starry River Ferry, lamp-keepers have for generations guided lost souls with heart lamps. Gu Yunzhou, a young lamp-keeper of ten years, finds himself waiting for Lin Xiaoman, a girl who should never have appeared—with a single touch of her fingertip, the ancient millennial lamp stirs abnormally, and the dormant lamp source begins to wane. Storyteller Mo Qianji closes in step by step, and the mystery of his father's disappearance surfaces. When the ferry plunges into darkness, Yunzhou finally understands that the lamp lies not in its source, but in the human heart. As long as someone is willing to light a lamp, the starry river will forever have light. A journey of guardianship and trust is thus ignited.