Framed and sent to Kokuyoku Prison for embezzlement, Hina Saotome desperately wants to prove her innocence. However, just when she thought her situation could not get any worse, she realizes that she is the only woman in a prison populated by men. But she may have even more to fear from Aki Myoujin, a handsome and stern warden who is intent on punishing her for an unknown reason.

Although the warden’s treatment is unconventional, Hina’s body soon begins to long for Aki’s particular brand of discipline. But has this hypnotizing man, who has captivated her body, captured her heart as well?

“If it’s a request from my precious wife, then I will give you the moon and the stars.” He flashes his gorgeous tattoos at me as he makes passionate love to me. This is bad! Something’s coming…!!

With the hopes of making a bit of extra cash, office worker Saki Watase registers for a product review program. But when the first product her new part-time job sends her is a huge box of XL condoms, Saki decides to put the task to the side.

Later on, while at a drinking party with her coworkers—including her competent but infuriating “demon boss” Keisuke Sudou—Saki ends up drunk out of her mind, so Keisuke offers to escort her home. Upon their arrival at Saki’s apartment, however, Keisuke immediately takes notice of his subordinate’s substantial number of XL condoms. When she explains the circumstances of her part-time job, Keisuke offers to help out with the testing—revealing himself to be XL-sized!

At a high school reunion, Mio Fukatani reunites with a classmate she has not seen in years—Takahide Kujou. She had always wanted to know more about the kind-hearted boy in high school, but once she realizes that Kujou has become a monk, she believes that any chance of getting to know him romantically is slim. Deciding to drink away her sorrows, she ends up walking home drunk, and surprisingly, running into Kujou who helps her get home.

However, once inside, Kujou’s lust for Mio becomes apparent and the two share an erotic night of passion. As this steamy romance blossoms between these two unlikely lovers, Mio and Kujou will undoubtedly spend many nights together in utter ecstasy.

Once most students are done with high school, they leave and never come back. However, at 25 years old, Hana Natori finds herself in the role of a student once more at her aunt’s request.

Since Hana’s cousin, Kaho Miyoshi, refuses to go to school, her aunt begs Hana to take Kaho’s place, since the two of them are practically identical. But as luck would have it, she is recognized by Okito Kanie—an old classmate from her days in high school—who is now a teacher! With her cover blown, Hana assumes Kanie will expose her secret. But when he suddenly kisses her, she soon learns he has other ideas.