□□

Friendship? Love? Four girls with very different personalities formed a small group and enjoyed their youth together. "...□□? It's not a good name to call... It's somewhat inappropriate." "What are you taboo about? What do those old men who have become locals have to do with us!" "Old man? Dizzy! Not all of them are old men... Besides..." "Hehehe, don't argue with her, she won't understand!" Unexpectedly, in less than three years from the time "□□" was named, our □□ was completely destroyed. Completely, shattered. What is the reason? I see.