This is a series of things that happened when a girl who was abandoned as a child returned to her original world after growing up on Earth.
This strange world has strange air and strange selves. Are they still alive? Do they still remember me? Are they happy? Are they happy?
Have you lived well, have you escaped the pursuit, have you found Los, have you searched for me, have you thought about me, have you missed me, have you recalled the memories of my presence.
I... Miss you so much.
(Note: Don't be deceived by the introduction. In fact, the writing style is cheerful but also free and easy, free and easy but also wordy, and the wordy is infinitely weird... Ahem, the first few chapters are relatively straight, but later on, it somehow becomes crooked...)