Li Lei an□□Han□□□imei were two adve□turo□s sou□s who a□ways□sought exc□tement an□ thrill in their□lives. They were□best friends □ince c□ild□o□d□and shared□a p□ssio□ □or exploring the un□nown□ One d□y, as □hey we□□ sitt□ng □nder the old oak tre□ in the park, Han Meimei □ad a□ idea that w□□□d lead □hem□□n a □ew adventure t□□t they□would neve□ forg□t.<□□>