Airi

Shion Yui (Riko Seto), who lives alone, often hangs out with six girls she meets on the streets of Tokyo, talking about trivial things as if they don't matter, and talking about non-trival things as if they did matter.

Manami helps out at her family's beauty salon and runs the unsuccessful "50% Theater Company." One night, after missing a call from Nao, her sister, Manami later discovers that Nao died that very night. After getting into a conflict with her mother, Manami and a friend set out for Tokyo in order to collect Nao's things. There, through encounters and reunions with various people, Manami finally comes to face with herself.

Katsura and Midori are in their third year of high school and are about to graduate. During these three years of high school, Katsura has made many friends and playmates, but Midori has only Katsura. With each passing day, Katsura becomes more and more active with men and becomes absorbed in social media, living a vibrant life in a world Midori knows nothing about. Knowing this, Midori suddenly stops going to school, wanting Katsura's attention and concern. Katsura's loneliness doubles with Midori gone, and in an attempt to fill the void, she becomes increasingly absorbed in playing and escaping reality. The one who supports Katsura's emotionally unstable life is a mysterious person she meets online who claims to be a high school teacher named Kinmokusei.