열대우림의 절대자인 사부가 키워낸 킬러조직 ‘슬픈 열대’ 소속 아이들이 서로를 의심, 피의 복수를 다짐하면서 벌어지는 이야기
A group of young assassins affiliated with the 'Tristes Tropiques' are trained by the tropical rainforest’s absolute ruler known as 'Master'. As they grapple with distrust, they vow to exact bloody revenge.