Han Yi leads a group of friends with distinctive personalities on an adventurous journey to find the legendary Heart of Mountains and Seas. On the way, you will travel through a fantasy continent and experience mysterious ruins, monster trials, ethnic conflicts and giant mysteries. They have both tense and exciting life and death tests, as well as relaxed and hilarious interactions. Each team member discovers himself and resolves his knots during the adventure. The story pays equal attention to humor and growth. The three volumes focus on the "difficult starting point", "magnificent exploration" and "wonderful ending" respectively. In the end, everyone works together to uncover the mystery of the world, gain sincere friendship and courage, and an ups and downs adventure journey comes to a successful conclusion.