My name is Asakura Kaede, I'm 17 years old, and I live in Shinjuku, Tokyo. I attend Toyonosaki Gakuen, a second-year high school student, and I also work part-time as a light novel author. I don't smoke or drink, I go to bed at 11 pm, and I need to get a full 8 hours of sleep every night... "Kaede, where are the snacks?" "...Before bed, I have to drink a glass of warm milk and then do 20 minutes of stretching exercises..." "Hurry up, I'm hungry! Get the stuff and come help me right away! And don't take the milk!!!" "..." "Once I get into bed, I fall into a deep sleep and sleep soundly until dawn, absolutely no fatigue or stress..." "Asakura Kaede!!! Hurry up and help me! I'm going to miss the deadline, I can't rest tonight! And don't play Kira Yoshikage's self-introduction over there!!!!!!!!!" This is my daily life with my manga artist girlfriend.

Naoto Yamashita, a failed art student, travels back in time to become a noble Celestial Empire traveler and a high school student in Japan. Here, he discovers his childhood sweetheart, Kusunoko Saiki. His best friend, Sakuta Azusagawa, is also a student at a strange club called the Service Club. Meanwhile, a rising manga artist, Yumeha Ashiroki, is also in the manga world. However, none of this has anything to do with Naoto Yamashita. As he desperately prepares to pay off his thirty-year mortgage—in short, this is the story of an ordinary high school student's ascent to become Japan's top manga artist.