https://www.cmoa.jp/title/317420/

Shougyoku Kan was renowned as the strongest female soldier. But, for some inexplicable reason, she, still single after turning 30, is chosen to become empress and enters the "Crimson Mist Palace," a harem swirling with female jealousy and desire—!? (Source: Kadokawa, translated)

Shougyoku Kan. A military leader hailed as an unparalleled genius, and later a deified empress. However, there are few records of her life before entering the imperial harem. How did she live, become a soldier, and meet the emperor? Let us tell you the beginning of her legend... (Source: Kadokawa, translated)

Ginka, a beautiful and carefree lady-in-waiting, harbors a secret. She is a member of "Tenshoku," a spy organization directly under the Queen. Ginka, cold and calculating yet possessing exceptional interpersonal skills, is assigned a new mission: A long-term assignment to become the wife of a general in the suzerain state and go into hiding abroad. After bidding farewell to her homeland, Ginka meets Tousei, a man of rough but gentle nature. Ginka, who harbors no romantic feelings, calmly fulfills her role as "wife," but Tousei unexpectedly becomes obsessed with her…? (Source: Kadokawa, translated)

After discovering that his trusted girlfriend is married, and is abandoned by his company and family, Momota is an average office worker at rock bottom. In his despair, he is picked up by a popular host named Yoru. He takes him back to his high-rise apartment, helps him bathe, and although he doesn't understand the situation, Yoru embraces him tenderly and Momota finds himself surrendering himself to him. But in reality, Yoru is a snake god... A controlling and obsessive host x an ordinary office worker at rock bottom. What will become of the man who is chosen by the snake god? [Original Manga](https://renta.papy.co.jp/renta/sc/frm/item/414813)

A collection of exquisite short stories, including the stories of the supporting characters and the perfect conclusion of Kouka Koukyuu Monogatari. (Source: Kadokawa, translated)

The story begins when a member of the royal family, ostracized by the emperor, and a beautiful young boy whose future is prophesied meet. Royal Jie, while hunting, nearly freezes to death in the snow. A harmless bookworm, Jie has been ostracized by his older brother, the new emperor, and banished to a remote area with little food. However, the dying Jie is rescued by a beautiful boy from the Akenoboshi tribe. Jie enjoys peaceful times with his first friend, but these tranquil moments come to an end when eunuchs carrying the emperor's decree arrive. Shortly after Jie departs for the capital, the Akenoboshi tribe accidentally obtains a letter that was meant for Jie. Learning of Jie's predicament, he rushes to find him... (Source: Kadokawa, translated)