Ah, that makes sense. I guess even manga writer-artists are human, after all.
It's unreasonable to expect perfect continuity without any errors, especially in a gag series. Thanks a lot for clearing that up, that would have driven me crazy otherwise. It is kind of funny that the only time the slip happens is when Eve is waking up, though, a character Gido is rather invested in. A bit of a freudian by Imai Kami, perhaps?