Manga by author Morita Ryou

"I can't believe my virginity is being taken like this!"Momo, a former track athlete, can no longer run due to an injury she sustained during her career. While her treatments aren't progressing, Dr. Dan encourages her, saying, "Let's overcome this together." Moved by his strong words, Momo begins to trust him, only to later discover that Dan is actually the underboss of a yakuza gang controlling the underground world! As soon as she learns his secret, he reveals his true nature, saying, "After treatment, I need women to calm myself down."What she thought was a one-night fling turns into being loved deeply and passionately every day in ways she never imagined!

Anastasia's engagement is called off by her parents and the engagement party that was supposed to take place on her birthday is suddenly turned into an engagement party for her sister Laura and her fiance Nikolai. Of course, she has to attend the party, too... Before she knows it, the school has found out about the engagement. Anastasia is humiliated and shocked, but Lewis, a junior student proposes a fake engagement between the two! Anastasia, no longer afraid of anything after experiencing a broken engagement and the pity of others, becomes desperate and plans to crash the engagement party with her fake engagement announcement.