Description
When his parents suddenly go on a trip overseas, Keita is left alone at home. His cousin Ryouko comes over to look after him, but she turns out to be a naughty older sister who loves cute boys!
“Kei-chan… do you want to do something like what's in that dirty book?”
A masterpiece from zunta-sensei for all older sister lovers!
Originally published in *comic anthurium* Vols. [003](https://comic.gotbb.jp/comics/magazine/comicanthurium/comic-a-003) & [005](https://comic.gotbb.jp/comics/magazine/comicanthurium/comic-a-005). ___ **Additional Buy Links:** - [DLsite](https://www.dlsite.com/books/fsr/=/title_id/TITLE00008472/order/title_d/from/work.titles) - [FANZA](https://book.dmm.co.jp/product/503096/b399agoar00063/)