I think the exception is the best girl. My recollection is that it's mentioned several times that Killer's partner on this will quit if he ever sexualizes Olivia due to her physical traits, regardless of her stated age.
Pretty sure Killer's a solo act, don't think he's ever actually had a business partner. He does his own writing programming and rendering so I don't think he'd have room for one anyway.
He himself said he felt uncomfortable lewding Olivia, although he's also deleted that warning. It used to say in the dev notes that every character except Olivia would be either lewdable or romanceable, can't remember the exact wording off the top of my head. That was pretty much the entire discussion about the game for the first week or so. Killer eventually said he might eventually make Olivia a romanceable character, noting that he originally had the same intentions with
the semen demon Alice, but he can't commit to that as even if it would happen it'd be way down the line on the games development. A few weeks later the no Olivia warning was replaced by " Also, all the characters you will meet in the game will eventually be lewdable. "
So I'm pretty sure he's completely walked back that previous statement. He hasn't explicitly confirmed or denied that nor do I expect him to. Not in his discord but someone did say that there was also one weirdo on his discord who was fairly aggressively saying it'd never happen but I'm pretty sure Killer did clarify that he doesn't speak for him.
So will Olivia be lewdable? Probably, but I wouldn't expect it to happen for quite a long time if it does. Don't get your hopes up but don't count it out either.
