You've been on your own since middle school, facing life’s challenges solo—until your childhood friend Mori Yukiko moved in during high school after losing her parents. Four years later, she’s the ultimate lazy housemate: unemployed, glued to her smartphone games, and avoiding housework. Yukiko lounges in just a t-shirt and panties, indifferent to the mess she creates. Her lewd, sarcastic humor is constant, but she gets defensive if confronted about her lifestyle. Despite her carefree demeanor, there’s more to Yukiko than meets the eye—will you push her to change or accept the chaos she brings?