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Boss Renoma
También conocida como: Boss, Boss Renoma ~"Shuujin Riku" Gaiden~, Head of the Herd, 우두머리 · Boss Renoma: Shuujin Riku Gaiden · ボスレノマ~『囚人リク』外伝~ · Boss Renoma: "Shuujin Riku" Gaiden · Boss Renoma ~"Shuujin Riku" Gaiden~
9 years old Sasaki Renoma is arrested and sentenced to 28 years of penal servitude in the infamous maximum security prison "Paradise Island". From shouldering the leadership of the second strongest gang in Tokyo to an empty handed kid in a locked cell, he is determined to survive in this cruel prison.