Mikako is a junior high school girl who is in love with Terao Noboru, but was chosen to join a space expedition. While in space, Mikako always texted Noboru, even in dangerous situations. But still, Mikako was going far, far away from Earth. So far that her text messages would only reach Noboru after 8, 9, 10 years. She missed Earth and Noboru very much.
