Thanks for the info, finally found it, but then realised that I hated this thing most of the way through the first one. I see that it was actually a VN (though I thought AVN was Adult Virtual Novel, which this is). After being away from it for so long I have no investment in any of the people and I couldn't even work out who the MC was until I went back to the part1 to check.
I'm going to dump this in my 'rubbish' folder as the continual clicking with basically no involvement or choices for me is just not enjoyable (if the animations were better quality then I might have stuck with it, but no, I have many others with much better story line and graphics).
Thank you to everyone who tried to help.