Tensei Shitara Dainana Ouji datta node, Kimama ni Majutsu o Kiwamemasu

Prince Lloyd carries a secret that sets him apart from every other royal in the kingdom: he remembers his previous life with perfect clarity. In that past existence, he was a sorcerer of considerable power, driven by an insatiable thirst for arcane knowledge. When death claimed him and fate saw fit to reincarnate his soul into the body of a young prince, he did not despair—he simply considered it an unexpected opportunity. Regardless of his new noble station, his one true ambition remains unchanged: to continue his magical studies and push the boundaries of his craft to their absolute limit. However, his new life is far from a simple continuation of his old pursuits. Being the seventh prince places him low in the line of succession, granting him a degree of freedom, but also burdening him with the many restrictions and ceremonies of royal life. More frustratingly, he now inhabits the small, unassuming body of a ten-year-old child. His immense magical knowledge is trapped behind a young boy's limitations, and his efforts to practice his spells often draw unwanted attention or cause comedic disasters. He must now navigate the delicate balance between maintaining his princely duties and indulging his all-consuming passion for magic. Undeterred by his youthful form and the eccentricities of his royal family, Lloyd vows to master sorcery once more. Whether he is sneaking away to ancient libraries, testing forbidden spells in the castle gardens, or dealing with the consequences of his experiments, the young prince's journey is a lighthearted and enchanting tale of magical obsession. With the wisdom of a seasoned sorcerer and the boundless energy of a child, he is determined to prove that even a seventh prince can achieve greatness—one spell at a time.