I don't remember where I got this small set from but it's definetely Izayoi's drawings. They must be pretty old, the style is not crystalized, but his perfect lines and precious faces are recognizable. ( check out page 6 for his name's spelling!)

i love this mangaka and his art

Base +6, Bane13 +31

Title should probably be:
[十六夜清心]AV嬢 十六夜話
[Izayoi Seishin] AV Girl - Sixteen Nights* Story(ies?)

*Izayoi means Sixteen Nights and each page is marked Second Night, Third Night, etc (No First Night though, we're missing a page).
though the last two are just Night Fifteen and Sixteen (no -th modifier , the "第" suffix). Made later than the rest, maybe?

Base +7, Bane13 +31

画的都是10年左右的真实女忧，大都80年代生的。
十六夜这种偏写实风格的果然是参考真人作品，阅片大人啊o(*￣3￣)o

Base +6