A DOOR

Yuna is an orphan. Several years later he met his long-dead mother. He and his mother spent time together in their old house which had not been lived in for decades. Yuna suddenly thought to call her aunt, she wanted to thank her aunt Yuna was able to meet her mother again. After Yuna told about the meeting with her mother, her aunt was surprised and said to Yuna, "Yun, isn't your mother dead?"