王室教師ハイネ [Ōshitsu Kyōshi Haine]

In this manga series from Square Enix, the brilliant but eccentric tutor Heine is hired to educate the four unruly princes of a fictional European kingdom. Over the course of 17 issues (2014–2021), the story blends comedy and character-driven drama as Heine uses unconventional methods to guide the royal siblings toward maturity and responsibility. Best known for its creator's warm, detailed artwork and the princes' distinct personalities, the series offers a lighthearted yet heartfelt take on mentorship and family bonds.