Angel is a hentai manga series written and illustrated by U-Jin. The original manga series met with controversy in 1990–1991 in Japan and was retired from its magazine serialization. It was adapted into an OVA of the same name and a sequel called Angel: the women whom delivery host Kosuke Atami healed. The manga was also succeeded by a manga called Angel: the women whom delivery host Kosuke Atami healed, and succeeded again by another manga called Angel: the women whom delivery host Kosuke Atami healed season 2.