It looks like the game has been abandoned

Could someone please continue it?
Nope, AFAIK Nightaku has been making VNs for about 7 years, none of which have been completed except for Oh, Daddy (which wasn't actually completed, but just ended abruptly and made into a spin-off so he could age up the characters to avoid increasing censorship issues). So far, he has managed to stick with Oh, Daddy for multiple years, which is a first considering that to my knowledge he's made probably a dozen VNs or so over the years, 7-9 of which are on this site depending on whether you attribute certain VNs directly to him, or to people who have worked with him over the years...
I'd be surprised if he comes back to this or My True Love, but I would be more than glad to be proved wrong by him for once =P.