Mezzon Ｚ

Trama

Kenji, a curious young boy, finds himself assisting his older brother on a mission. Unbeknownst to Kenji, his brother is a clandestine member of the Japanese branch of Mezzon, an organization dedicated to maintaining peace, operating under the codename Mezzon J. Following this encounter, Kenji is selected to join the organization as a temporary member, adopting the codename Mezzon Z.