I was browsing through bs-garden website to find some info about next HertZ issue. And accidentally bump into
交渉人 (koushounin) new website which promotes 2 latest books of this series. I was totally like w(!!! ° Д ° )w when I saw the cover. I can't believe it's Chiharu Nara 's drawing. I know she changed her style a little bit in Koushounin series, more or less like comic style. It's not bad in the previous books though, it matched Yuuri Eda's humorous tone. But in the new books covers, she changed too much, even the way she draw the characters face, that I can't even recognize S series' illustrator. Maybe I'm biased but I think she works better with dark/serious theme content and with warm tone for coloring. There's another work of her,
薔薇の刻印 (bara no kokuin) by Yakou Hana is also published at the same time, but like I said I still prefer warm colors. I haven't take a look inside, so no comment bout black/white illustrations yet. I hope it's not another (!!!  ̄ Д  ̄ )
EDIT: I take a look inside the books, it's just too much........m(|||| _ _)m