The Qiyu expedition team led by Song Tianle set foot on an unrecorded continent after accidentally discovering a mysterious map left behind by his parents when they disappeared. Each of the five people showed their special abilities, complained about each other and saved each other. They experienced forest fog, ancient ruins, extreme landforms, and attacks by alien creatures. From quarreling to joining hands, they finally solved the mystery of the empire's legacy hidden behind the map and their own growth. The crises in each volume are different, and the whole story runs through subtle changes among the team members. The ending reveals that the real treasure is not external objects but team friendship and self-breakthrough.
