在清澈的海洋旁，洁净的岛屿上，阳光洒下温暖的金色光辉。耽美宠文娱乐圈

　　"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.