In a diverse continent where miracles and dangers coexist, Chu Yunzhou accidentally obtained an ancient map and gathered many partners with different personalities to form an expedition team. They embarked on a journey to find the "ultimate secret realm", passing through wastelands, deep seas, dungeons and hidden ancient cities. They encountered puzzles, strange creatures and unknown ethnic groups along the way, and had to face their own inner fears and growth. The three volumes are unfolded in stages: the first volume unveils the journey and solves the mystery of the map; the second volume goes into the depths of a more dangerous world, with the team members' relationships escalating and facing constant challenges; the third volume faces the ultimate secret realm, the truth is revealed, the adventure ends, and the character growth and ending echo the previous events. The book has a tight rhythm, a coherent story, and humor throughout. With passion and warmth, everyone grows in the end.