Sankaku is going to graduate from junior high soon, and she is a girl who treats many things with cold cynicism because of a disappointing romance during elementary school. She now does not have the courage to love and decides to bury her feelings for her long-time crush, Yokosuka, and graduate without telling him about how she feels. One day, she happens to run into Yokosuka and his friends, plotting to do something stupid on graduation day. Soon, Sankaku is caught in their crazy plan!

Rikushou Mikoto is a transfer student with a habit of talking to trees and a knack for handling horses. When a person starts making trouble, Mikoto is determined to catch him. As she tries, she not only stumbles on the school secret, but becomes a part of it!
(Source: MU)