Miki Takekasa is a shy high school student who does not interact with her peers. She, on the other hand, wants to know what "fun" actually means and is looking for someone who can help her comprehend it. After school one day, she meets her classmate Aya Takayashiki, who takes her on a brief trip. Miki encounters marvels she has never seen before, paving the door for her isolated existence to change. On their walk home, Miki and Aya notice their class representative Midori Oono entering Saikoro Club, a board game business. Miki quickly realizes the type of enjoyment she was seeking for after trying out a German board game: playing numerous games after school with the friends and acquaintances she meets through her studies.