Night Hand (1997).
Many web searchers have arrived here recently looking for gay artists from Japan so here’s another. Seiji Inagaki was born in 1942, and describes himself as bisexual if you want to get all self-identifying about it. A lot of his drawings are the usual stuff of cute boys posing or having sex but there’s also some stranger work like the picture below of a boy being fellated by one of those weird Japanese ghosts you find in more traditional art. Despite having been active for many years there isn’t much of his work online even if you search using Kanji characters. The Japanese Gay Art site has a number of his drawings for sale.