Rintaro Kuriyama, also known as Green, was expelled from the elite Tokyo-affiliated “Victory Sentai Victor Rangers” for engaging in too much dirty work. Through a misunderstanding, he was brought along to an evil secret society and was warmly welcomed as the heinous mysterious Death Green. Hailed as the most atrocious and mysterious being in history, he engages in muddy conflict with the corrupt heroes of justice. Sure-kill technique! Laxatives, bombs, neurotoxins! An evil mysterious being. Perhaps it’s my calling? A man who chose not to use the ways of a hero takes on the role of heinous mysterious being “For the sake of protecting my peace.” Together with his cute, sworn, little sister (shark), he bares his fangs towards twisted justice! A peace-loving dark hero of good and evil! The strongest and most vile hero, the heinous mysterious Death Green, is born!