Li Lei and Han Meimei□were□□wo adv□ntu□ous so□l□ who always so□ght excit□me□t an□□thr□□l i□□their l□□es□ They wer□ best friends since childhood□and□s□a□ed a□passion □or expl□ring □he un□no□n□ One day, as they were sitting unde□ t□e o□d □a□ t□ee in □he□p□rk,□Han Meimei had a□ id□□ t□at □ould l□a□ them□o□ a new ad□enture□t□a□ they would never□□orge□.