I liked a few of this mangaka's short stories. Some didn't care for the characters and I could see where they seemed like they might slip right into the unlikable category but they still appealed to me for what little we saw of them.
Never tried that NTR one since I try not to touch things with tags denoting stuff I probably won't enjoy.
This one seems interesting.
I still think there is a chance the parents come around. Can't always work out but it sure is sweet when it does.