Honestly while the pervy issue bothers me. What turns me off the most, about these types of series, is that they will not go anywhere.
Gag yuris are usually just one well warn tired cliché after another. Sure there are a few chuckles, maybe even the occasional genuine belly laugh here or there, but you usually have sit through a lot of stuff you have seen a hundred times before. What gets me to read them, though, is the promise of an actual love story skillfully woven in amung all the hot spring trips, and sleep overs.
With a lolicon like this, a romantic ending is virtually impossible. Even if it wasn't I wouldn't feel right rooting for it.