Touch Me Again

Kiji is paid a visit by the ghost of his dead friend, Osaka. Although Kiji sees Osaka, it is only an afterimage of his friend, as Osaka's spirit is actually in Spica, a star that is 260 light years away from Earth. As a result, everything Osaka says goes through a time lapse and Kiji only hears him after the afterimage disappears. This is a sad, poignant story about two men who never found it in themselves to confess to each other until it was too late.
(from Baka-Updates)