is a Japanese light novel series written by Rinne Ishida and illustrated by Izumi. Enterbrain have published eighteen volumes since July 2017 under their B's Log Bunko imprint. A manga adaptation with art by Waka Takase has been serialized in Akita Shoten's manga magazine Princess since August 2018 and has been collected in eleven volumes. An anime television series adaptation produced by Maho Film is set to premiere in January 2027.
KÃ Â was born as a commoner. However, she has a special talent: a good memory. By chance, KÃ Â ends up working as a maid in the palace and eventually becomes a court lady with an official rank. One day, at the instruction of the head lady-in-waiting, she is to stand in for the son of a distinguished family in a rehearsal matchmaking session. However, Emperor Hakuyo of the state of Bai Lou shows up instead. After a bag-snatching incident occurs during the rehearsal, Hakuyo, who is impressed by KÃ Â, decides to make her a government official. Now, KÃ Â is working hard and completing one task after another, while also trying to stay close to the kind yet assertive Hakuyo.
Written by Rinne Ishida and illustrated by Izumi, Matsurika Kanriden began publication under Enterbrain's B's Log Bunko imprint on July 15, 2017. Eighteen volumes have been released as of October 15, 2025.
A spin-off light novel series, titled , was published in ten volumes under the same imprint on October 15, 2018, to October 15, 2024.
A manga adaptation illustrated by Waka Takase began serialization in Akita Shoten's manga magazine Princess on August 6, 2018. The manga's chapters have been compiled into twelve volumes as of October 2025.
A manga adaptation of the Jà «sansai no Tanjà Âbi, Kà Âgà  ni Narimashita spin-off series illustrated by Mito Aoi began serialization in the same magazine on March 6, 2020. Its chapters have been compiled into eight volumes as of July 2025.
An anime television series adaptation was announced on October 1, 2025. The series will be produced by Maho Film and directed by Yuichi Nakazawa, with Takeshi Mori serving as chief director, Touko Machida handling series composition, Manami Inose designing the characters, and Takurà  Iga composing the music. It is set to premiere in January 2027.