"He waited for someone for twenty years. He stood by the window every day, from sunrise to sunset. As he waited for a long time, he began to forget who he was waiting for. But he never washed those two words in his hand - 'alive'. Because they were written by someone. He didn't remember who it was, but he knew it was important."
Concept: Love means falling in love with the same person again and again even if you forget about the whole world.