名家のご令嬢としてわがまま放題に育ったお嬢様・蓮。専属のお世話役として幼少から仕える小林は、彼女が望むならば何でもする。それこそお嬢様の排泄物さえ、自ら便器となって喜んで受け止めてみせる.。

"Owai" means to be unclean or dirty. Stool, or feces. As the words say, SEX unfolds in front of you while being covered with the filth that has been pulled out. Excitement is inevitable for sexual intercourse that is extremely fetish.