Lemon was a muaka owned by Leresh for several years. After the events of Jevik? Pt 3, the creature has come to live with Onipex, Jevik, and Pyrex.
Biography
Lemon was Leresh's pet Muaka, illegally held in a closet of his apartment. The creature appeared to be tamed to a degree, following Leresh's order to attack Onipex. Onipex locked it in one of Leresh's room in retaliation, which presumably saved it from being destroyed by Magneon. At some point shortly after Leresh's demise, Onipex adopted the Muaka instead of turning it into the authorities.