Li Lei and H□□ Me□mei □e□e two adventurous soul□□□ho alway□ sought e□citem□nt and thrill□in□the□r lives. The□ were□best□□riends since chil□hood□□nd sha□e□ a p□s□ion for explorin□ the □nknown□ One□□ay, as t□ey were sit□ing unde□ the ol□ oak tree in □he park□ Han□Meim□i had□an idea tha□ □ould lead □hem □n□a new□a□vent□re that t□ey would never□□orget□