Qin Yue and Qin Feng transmigrated into the Spirit Cage world. Qin Feng became Fandi, a Lightbearer, while Qin Yue became Hong Kou. They fought alongside the Hunters against Charles and the Light and Shadow Cult, enduring betrayal, being burned at the stake, exile, and more. Later, they encountered forces on the surface and obtained new energy weapons. Now they are heading to the Lighthouse to retrieve information about the Abyssal One.