Anime premiered in April 2017 with stage musical in September

A special LINE LIVE streaming program revealed on Wednesday that The Royal Tutor anime will reveal a new project on September 18. The anime's official website revealed a countdown with a visual of the series' five main characters and the text "Well, let's begin. The next lesson—." The website also noted that September 18 marks the one-year anniversary since the franchise's stage musical debuted.

The anime adapting Higasa Akai's manga premiered in Japan in April 2017, and Crunchyroll is streaming the series with English subtitles.

Katsuya Kikuchi (Idol Memories, Sengoku Paradise Kiwami) directed the anime at the studio Bridge (Nobunagun, Fairy Tail). Kimiko Ueno (Kuromajyo-san ga Tōru!!) was in charge of series composition, and Rena Okuyama (Idol Memories, Sengoku Paradise Kiwami) designed the characters. Keiji Inai (Is It Wrong to Try to Pick Up Girls in a Dungeon?, Outbreak Company) composed the music at Avex Pictures. Shōgo Sakamoto performed the opening theme song "Shoppoi Namida" (Salty Tears).

Yen Press began releasing Akai's original manga as e-books in English in 2015, and it describes the story:

Accepting the post of Royal Tutor at the court of the king of Grannzreich, Heine Wittgenstein is a little professor with a big job ahead! Each of the kingdom's four princes has a rather distinct personality. Does their diminutive new instructor have what it takes to lay down some learning? It's a comedy of educational proportions!

Akai launched the manga in Monthly G Fantasy in November 2013, and Square Enix published the 10th compiled book volume on January 27. The 11th volume will ship on July 27.

Sources: The Royal Tutor anime's website, The Mainichi Shimbun's Mantan Web