nise_midi_doro_no_kai is the artist. Just looks like it's some ero-manga from him. Haven't seen it, though I used to have a pretty recent collection of his work.
Anonymous said: C. Megastore H 2006-04 - Ofuro de Iro Iro
No!Nn!Hyauu!!I'll investigate this pretty little place~♥Ah!That's right.Huh...?Well then, only onii-chan...
(TN: Unsure, due to versatility of "hitotsu")Yah!Yah...You do me, too....Why......am I in such a situation...?