In the event that anyone cares. I'm gonna make just mention the scenes I found based on the 'tips'
After dealing with the first day's events and the game lets you freeroam. There's a white crystal, a blue crystal, and half a bed in the center of town. White crystal changes the time of day, Blue changes the day itself without changing the time of day, and the bed makes you go to bed and reset the day. I have high doubts this could trigger events as I've had more luck doing it the slow way by eating and sleeping than the fast way.
That said, I noticed the pot in the PC's room that denotes day number, not sure how this works/helps
1- (Sister)On random nights, the MC will wake up to a noise and you can choose in investigate it. Heading north, you'll see your sister giving one of the chocobos(Bronkbeaks) a blowjob.
On the next night, you can approach her while she's asleep and jerk off on her face.
The next night, go to bed and the game will ask if you wanna masturbate. Accept your fate and your sister will catch you jerking off. Repeat again for your sister to catch you jerking off, instead of running away with an apology, she'll meekly crawl up to your dick and get covered. End of the Sister route at the moment.
(Your sister will still blow the birds at nights)
2- (Captain)At night, you can talk to the captain in the bar; the game will point out the amount of beer she's consumed, this scene occurs when she is drunk. Ask to join her and she'll accept, leading you to escort her back to the barracks where she moons you, with her ass and pussy on display, you run away and she hesitantly thanks you for helping her home.
The next night, talk to her in the bar and ask to sit with her. This will lead to you fucking her over her desk back at the barracks. You can now just talk to her at the bar for this scene.
3- (The Mercenaries) On random nights, you can spy on the Dark Elf Futa titfucking the Gnoll next to the inn
4- (Guards) Some nights when walking to the pass, you'll see lady guard giving the shota guard a titjob by their post
5- (Bird Lady) Some nights (Presumably after your sister gets a face full of your cum), the bird lady will give one of the birds a BJ
In conclusion. I see a lot of voyeurism, beastiality, and a bit of shotacon, futa, and furry. Not really NTR when the girls involved are not in a relationship with the Player. The closest being your sister blowing the bird even after she watches you masturbate. NTR implies that you are in a relationship with the girls already and they are fucking other people or birds behind your back.