Ikariishi, an overly quiet high school student who goes to a cram school to pursue his dream of becoming an astronaut, is confronted with the problems of another student at the same cram school, Hirona Tsushima. She has been running away from trying her best and has become desperate after failing to advance to the next grade. She wants to change herself, and Ikariishi is determined to help her! The love and dreams of a high school freshman! Everything is a bit confusing, but... you can only come of age once, and you can't enjoy it just by running away!