Shuurei Kou and her friend Eigetsu To, a boy prodigy of humble origins, have been appointed co-governors of the Sa province, one of the eight provinces in Saiunkoku. Together, they decide to make the province an academic research center in the hopes of bringing a long overdue prosperity to the region. However, while Shuurei goes to the capital to obtain approvals for the ambitious project, the Sa province's recently established tranquility is threatened by a pandemic that brings both death and turmoil as it begins to spread among the people. Counting on Eigetsu to monitor the situation until her return, Shuurei seeks support from her allies to find a suitable treatment. Yet, Eigetsu's past personal conflicts distract him, providing an opportunity for opponents of Shuurei's position to take advantage of the troubles and undermine her authority. Becoming a government official has been Shuurei's lifelong dream, but it is no easy task for the first woman undertaking such a position. Will she step up and overcome this great challenge or give in to the looming adversities?

5 Dream Sequences, dubbed his Delusions. Wet dreams from the imagination of a healthy young male.

Aiming to become a modeling artist, Itsuki, a childhood friend of Ichitaka who went to America has come back to Japan. Iori who refused the idol path and started to pursue her ambition to become an actress instead. Ichitaka, wandering on his bicycle alone, tries to decide his choice between the two persons.

At the time of the ceremony of entry to the college, a young boy named Ushino Hayama finds Sara a girl whom he met ten years ago. From this day, a change has taken place in him, and notices that can now control some water. After having succeeded the swimming championships, he discovers deep sea diving.