He remembered his ex-girlfriend, Son Eunsu, who was beautiful, kind and affectionate. She really cared about him. He knows she was worried about him. However, he doesn't understand why the feelings he was feeling for her were different from what he had about Yuri. With Unsu, he felt safe, at peace and happy. In contrast to Yuri, he feels despair, fear, loneliness and all the feelings he's never felt before. This drains all his feelings, stirs his heart badly, but always finds himself longing to see her face. Perhaps it was because of his feelings of guilt towards Yuri. He lay on the loose sand and put his hands behind...