Nevermore

James Jung is a top student at Ozoh Academy, an elite school for the wealthy and talented. He secretly works to protect the principal from an assassin named Samuel Gyo, who is also his homeroom teacher and known by the codename Black Mamba. To carry out their mission, they must follow three rules: keep their identities hidden from other students, avoid harming students, and refrain from using explosives or firearms, though poison and tranquilizers are allowed. A fourth rule, not previously discussed, prohibits them from falling in love. The question remains whether they will be able to follow it.