CHII

Sae Yoijima, a masculine office worker with a heightened sense of justice, is caught off guard when the handsome, muscular, and effeminate Haruchika Ego fiercely pursues her. But, Sae has a secret. In her previous life, she was a knight. Haruchika becomes Sae's chiropractor and safe haven, as he doesn't make a mockery of Sae for talking about her previous life. One day, when Sae finds herself in a rather compromising situation, Haruchika comes to save the day. He had tried to sideline his feelings for her, but now he feels he must punish her for allowing herself to nearly fall victim! What!? Is Haruchika the princess Sae's been looking for!? Lost in a haze of confusion, when Sae comes to, she finds herself being pleasured by a man! Yet, despite the pain, something feels good about his big body being pressed against hers...!

24-year-old Mayu Ohsone works a normal staff job at a cake shop. One day, she meets a cute guy named Makoto Makino, who is six years her junior. He seems serious and has glowing skin, and when he asks her out, she is smitten by the earnest look in his eye and the blush on his cheeks. However, it's hard for Mayu to accept his advances, considering the cheaters, harrassers, and stalkers that have broken her heart in the past. Even though she refuses, Makoto doesn't give up, and pursues her with a passionate look in his eyes...!

Chii and her husband are like any other happily married couple, except for one thing: Chii was assigned male at birth. Chii details her autobiographical account of growing up with gender dysphoria and ultimately deciding to transition in her early adult years. Shortly after Chii starts transitioning, she meets a man who is instantly enamored by her, and although he is surprised when Chii eventually tells him she used to live as a guy, he still wants to go out with her. As Chii continues to transition, her boyfriend supports her through the process, culminating in their marriage once her transition is complete.

Certain people suffer from a mysterious disease which causes a wind-up key to appear somewhere on their body. The key has to be wound regularly, otherwise they will stop moving. Miku’s parents, who suffer from this disease, are captured by the authorities, while Miku escapes into the town to seek help from a mysterious boy called Kuro.