is a Japanese manga series written and illustrated by Tohru Himuka. It began serialization in Kadokawa Shoten's shà Âjo manga magazine Asuka in January 2018.
When the prince of the Moonflower Kingdom travels to Ran Province, he and his companion Shiei are attacked by highwaymen sent after him by the concubine Ro. In the next town, they are sent to see the doctor Koyo. With her assistant Shingdam, she manages to save Shiei. Her knowledge of medicine and her surgical skills impress Prince Keiun. In the land, it is customary to banish illnesses with rituals, which have only limited success. To compensate her properly, the two noblemen take the doctor and her assistant back to the capital. Keiun wants to use Koyo's skills to help others in his kingdom and spread her knowledge. But the young, beautiful, and eccentric woman soon encounters resistance, and the prince remains in danger.
Written and illustrated by Tohru Himuka, The Eccentric Doctor of the Moon Flower Kingdom began serialization in Kadokawa Shoten's shà Âjo manga magazine Asuka on January 24, 2018. The series' chapters have been compiled into fourteen tankà Âbon volumes as of November 2025.
During their panel at Anime Expo 2022, Seven Seas Entertainment announced that they licensed the series.
A voice comic adaptation was released on the Kadokawa Anime YouTube channel on June 24, 2021. It contained the voices of Yumiri Hanamori, Kenji Akabane, Takuya Satà  and Tarusuke Shingaki.