Nero

Nero is a familiar who has forged a contract with the witch Monica, ordinarily taking the form of a black cat while concealing his true identity as the mighty Black Dragon of Volgan. Notorious for his insatiable appetite and tsundere disposition, he frequently makes cutting remarks about Monica's poor social skills. A devoted reader of human novels, Nero serves as Monica's most powerful ally—providing magical support and steadfast protection during her covert guardian mission infiltrating the academy.