“Meeting you is the greatest luck in my life.” Ten years ago, my good friend died. Although I cannot remember much. But. He was very important to me. Very important. A person who seems to have been forgotten by everyone. A mysterious letter. And an unfulfilled promise. This time, the gears of time start moving again during this year’s Ghost Festival. It’s time to uncover the buried memories, to dig out the secrets of the events that happened back then.