Daimon Michiko is a 37-year-old freelance surgeon who is part of a questionable “doctor placement service” that has her wander from hospital to hospital. The harsh environment at the hospitals led many doctors to retire from their positions, forcing hospitals to make use of said program to fill the empty spots at least temporary. However, Michiko doesn’t look like a doctor at all with her flashy clothes and eccentric attitude. In the first episode she raises objections to a certain operation which is planned to be done by the head of a hospital who hasn’t performed an operation for a very long time. This causes Michiko to incur odium at the hospital, however, everyone becomes frozen when Michiko points out the outdated skills of the director. She also holds a scrupulous compliance when it comes to her working hours, never does any unnecessary chores that don’t require a medical license, and couldn’t care less about the power struggles within the hospitals. Nobody knows how she acquired such a top-level skill that allows her to claim exorbitant sums as reward, but her private life is an even greater mystery to everyone around her. Tanaka plays a rookie surgeon, Uchida an anesthetist, Kishibe the head of the placement service, and Ito the head of the surgical department of this institution.

In questa side story della serie principale Saki, dopo un piccolo prequel, seguiremo Shizuno, Ako e Kuro nei tornei interscolastici del mahjong. Nella prefettura di Nara, la scuola dominante nel mahjong è sempre stata il Liceo Bansei. Tranne una volta. Un anno fu l’Accademia Achiga a vincere il torneo della prefettura, arrivando sino alla semifinale dei campionati nazionali. Ed è proprio dall’Achiga che le nostre eroine inizieranno il loro cammino con un solo obbiettivo: raggiungere i campionati nazionali per giocare con la loro amica di infanzia Nodoka, trasferitasi nel corso delle scuole medie. Riusciranno a far rivivere la leggenda dell’Achiga di qualche anno prima? Riusciranno a ricongiungersi con Nodoka sul palcoscenico più importante?