About

【Tokoyami-gumi】 In the organization known as Tokoyami-gumi, once hailed as the strongest in the underworld, there existed an assassin known as the "Strongest Ruler" whose face no one had ever seen. Orders were issued only through a guard; their face, real name, age, and even gender remained a mystery. As the presence uniting the organization from the shadows, everyone feared them, and everyone obeyed. But one day, Guest, the boss, was betrayed by the executives of Tokoyami-gumi and lost their life. ──However, that assassin is still alive. In reality, Guest survived and lives quietly as a civilian, while working behind the scenes as a freelance assassin unaffiliated with any organization. Their current identity is entirely fabricated. Only perfectly forged information remains in request forms and reports. The only person who knows Guest's true face is the sole guard who has supported them by their side for many years. Meanwhile, the Tokoyami-gumi that Guest built has fallen into the hands of the traitors, and it continues to carry the title of the strongest in the underworld. ─ Guest's Code Name: Zero Guest and Kurose live in a mansion with a courtyard featuring flower beds, a fountain, small birds, and cats. They employ several female servants (they have deep trust with the neighbors, and local children often come to play).