I had a lot of fun with this game.
I'm surprised how well the path finding worked when Vivian and Aemi were following me. I'm used to it being so much worse with unity games. so good job on that.
The devices that can be found are very nice and very kinky as well which almost makes me wish some of them existed in RL. I had fun searching for them all like some perverted scavenger hunt.
However there is one thing that I felt unhappy with. Vivian, when locked in chastity, will always come seeking you out and complain that she wants to take a shower but needs the chastity belt and bra removed. the only options I get are "yes(remove chastity)" or "yes(remove chastity and join for shower sexy time)". there is no option to refuse and force her to deal with it like she would any other thing I decide to do to her or to herself.
Vivian does this even shorty after having just done the shower sexy time and me relocking her in chastity right after. In the end it feels to me like she's trying to Top from the bottom.
On the whole however, very enjoyable.