This work is a time-travel comedy that unfolds when a good-for-nothing uncle from the Showa era comes to the Reiwa era. Middle school physical education teacher Ogawa Ichiro travels from 1986 to the modern day of 2024.Ichiro, who spoke vulgarly and repeated inappropriate words and deeds that Reiwa could not imagine, also gave people in the Reiwa era, who were bound by compliance, an opportunity to think.Risa Naka plays the role of Nagisa Inujima, a single mother who works in a television station, and meets Ichiro who comes from time-travel in the Reiwa era.Yoshida Yoshida plays the role of gender studies sociologist Mucus Sakae who travels from Reiwa to the Showa era. Junko, the only daughter of Kawai Yumi Ichiro, and Sakamoto Eden plays the middle school student Mucus Saka Kiyoshi who was born in the Reiwa era and traveled to the Reiwa era with his mother Mucus Sakae.In 1986, I fell in love at first sight with Junko, whom I met during the Showa era.