"My dear, I died today. I left you a letter that you need to read every day. Forgive me for being selfish. I don't want you to forget me."
"Every day after you leave, I will reply to your letter. I will never forget you, my love."
When we are in two worlds, how can I let you not forget me.
How can I find you again when we are in two worlds.
This is the story of a pair of lovers who miss each other after one of them leaves.
Concept: Love allows us to transcend space