A: The main series has 4 episodes, each approximately 25 minutes long. A 5th "OVA special" was released focusing on a side character.
A: No. The anime stands alone, though reading the manga adds depth to Yamamoto's character.
praise its mature writing, atmospheric direction, and refusal to portray the wives as simple nymphomaniacs. Many adult anime fans call it "the Fleabag of hentai"—a show where the sex scenes serve character development, not just titillation.