Li Lei and H□n Me□mei we□e□two adve□tu□ous □ouls □ho □lw□ys sought exci□em□□t and thril□ in□their□l□ves□ They□w□re □est friends since childhood and □h□re□ a passion for□explori□g □he□u□kn□wn□ On□ □ay, as□they wer□ □i□ting under t□e old □a□ tree i□ the pa□k, Ha□ M□□mei had an idea that wo□ld □□a□ them on □□ne□ adventure that □h□y□□□□ld never f□□ge□.