There was a scene that seemed to be very clear. In that scene, a girl who looked delicate and gentle was holding her hand and playing with her by the water. Sunlight shone on her face, which had an unhealthy green and pale color.

But her smile was sweet and happy.

That girl was the little elder sister that she had always remembered. Her memory suddenly jumped to that terrifying time. That weak girl gulped and spat out large mouthfuls of blood. She lowered her head ...