"洁净海岛：环保与自然和谐共生的理想之地"男生最招架不住的聊天

　　"4: Clean Island" follows the story of "4," who dreams of immigrating to the Clean Island, which is the cleanest place in the world, as she shares the story about a special pig at a strange immigration checkpoint where people have to confess their sins in order to pass through.