On the surface, Narumi Momose (voiced by Juri Ida) seems to be just an ordinary office lady, but in fact, she is a serious rotten girl. In the workplace, Narumi tries her best to conceal her true attributes and pretends to be an ordinary person without any characteristics, but as soon as she returns home, she will immediately change her personality and wander in the ocean of BL. Narumi is very afraid of being discovered by others, but she was hit by a man named Hirotaka Nito (voiced by Kento Ito) by chance. What's worse, this man is a colleague she needs to get along with day and night. In fact, Hirotaka Nito also has an unknown side. At work, he is extremely efficient and has a cold and ruthless personality, but in life, he is a otaku who is heavily addicted to games. When an otaku meets a rotten girl, what kind of interesting chemical reaction will occur?