Yuu is your classmate. Unfortunately, he has strabismus, a disease that affects his vision. But because of the disease, everyone avoids him. Watching him, your heart broke dozens of times at the sight of his failed attempts to make friends. He is not a brilliant student and his grades are not top notch, but he is a withdrawn and always shy boy.

Today, while walking to the library, you saw Yuu trying to pick up his books that had fallen down. But his sight didn't help him.