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.

Bai Yu, a time traveler from China, now a high school student in Japan. By day, he's a sophomore at the private Shuchiin Academy and the student council president. At night, he drinks a glass of warm milk, practices swordsmanship for 30 minutes, kickboxing for 30 minutes, does 100 push-ups, 100 sit-ups, and 100 squats, and gets eight hours of sleep. He hasn't gotten bald, and hasn't gotten stronger. He yearns for a peaceful life, oblivious to the anime heroines around him—Kaguya Shinomiya, Mai Sakurajima, Chika Fujiwara, the Nakano sisters, Utaha Kasumigaoka, Yukinoshita Yukino, Asuna, Jeanne, and so on—except for his half-sister, Kei Shirogane. Until one day... his dormant system awakens! Main Quest 1: Resolve the myriad strange events that keep coming: the shrine incident, the mystery of Kaguya Shinomiya's inability to confess her feelings, and Chika Fujiwara's sometimes innocent and sometimes dark side... Main Quest 2: Branch 1: (Become) conquered by all the anime heroines and survive without getting chopped off. Branch 2: The system can't save you, live as a single dog. Mainline 3: Complete mainline 1 and mainline 2. Tip: If you don't select for more than one second, mainline 3 will be automatically selected. Failure: Reload the save file and try again. Why has the style of my world changed? Gou system! This is a daily comedy of youth love with a little fantasy

Ten years ago, after the giant radio tower symbolizing Tokyo was occupied by terrorists, Sakura was considered one of the safest countries in the world. My girlfriend, Gudako, made an indelible contribution to this. Because back then, Gudako and I had neither children nor dogs. Black Lagoon boss Balalaika: "I knew at first glance that Kobayashi could become a big and powerful force, achieving even greater glory." Lycoris: "Such a powerful existence is not allowed on the land of the Far East." Arms Queen Coco: "I hate stingy buyers like Kobayashi the most." Now Kobayashi has to earn money for baby formula and dog food. ...Huh? What are you writing on my business card? She's slandering me, they're slandering me! I'm a law-abiding citizen, okay! Existing reader group: 909128831

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.