A Love Letter to You

A somewhat unusual customer who has been coming frequently to the shop I inherited from my uncle recently. He always sits alone in the back seat, reads a letter, and then leaves. I had been curious about him for a long time, as his expression while reading the letter was utterly serious. One day at lunch time, I spoke to him as he sat alone. Who was the sender of that letter? What was he thinking as he read it? Reclaiming the lost time of the past, their time begins to move forward once again.