天才は猫を被る~帰還した最強魔術師~

Seven years after little Leon, heir of the Capet family, was lost, he returns as Hal—a prodigy child mage from the Holy Mountain. Bound by a pact that keeps him from revealing he is Genevieve’s son, Hal plays cute and helpless, searching for a chance to reunite with her, while secretly crushing every enemy threatening his family.