29 to JK

Yariba Eiji is a 29-year-old office worker whose only hobbies are video games and manga, and he spends his free time relaxing at net cafes. One day, he runs into a 15-year-old high school girl named Minamisato Karen and scolds her, which surprisingly makes her more attached to him. As his personal life begins to change, Eiji also starts to attract the attention of his lazy middle school sister, a nosy childhood friend who used to be his girlfriend, and a serious subordinate. With multiple women showing interest in him, Eiji must manage his growing romantic complications while keeping up with his demanding job.