The Vampire and His Pleasant Companions Vol. 1 (manga)

Since becoming a vampire, Albert's life has fallen into an unchanging cycle--day to night, bat to vampire, USA to...Japan? After a mishap at a meat-processing plant in Nebraska, bat-Al is flash-frozen alongside his midday snack and shipped to a foreign land! Explaining to police how he really ended up wandering naked is out of the question, not to mention he doesn't know a word of Japanese! Al will have to rely on the kindness (?) of his new companions if he's going to get by in Tokyo--that is, if he can convince them he's the bat!