The heroine was unexpectedly late and rushed to school, but she accidentally bumped into the hero. The male protagonist felt very angry about this, but the female protagonist rushed to school on the grounds that 'the old classmate will be angry if she is late'. As a result, when she rushed to school and sat in her seat, her old classmate came and introduced a boy. The heroine was surprised to find that it was the hero! Later, the two fell in love, but the heroine kept it secret from the hero that she was sick and was not going to die soon. It was not until the heroine's death that the hero finally knelt down and proposed to her. The next day, there was a figure of the person she liked next to the heroine's body. Hush, their love is still budding!