The Shouta family had fallen into darkness after losing the husband. However, their daughter started dating her cousin Kichi, and thanks to him, the household was slowly returning to its former brightness. The relationship between the daughter and her cousin seemed to be going well, and Kichi was relieved. But he accidentally witnessed the acts of the daughters. Although Kichi knew he shouldn't watch, his lower body throbbed, and he couldn't help but slip in his fingers…
