From what I played, I'm pretty sure that the title that you're using doesn't matter at all and it's only clothing and time that affects CGs.
Here's my vague memory for events up to a certain point.
- The first CG in the original church's confessional.
- The initial demon meeting.
- The dream that Emiliana has after being kicked out of the convent.
- One of Emiliana's breasts being poked from doing the quest to find a woman's kid.
- One from successfully fishing something up.
- A few from the helping out at the town's confessionals.
- One from losing at the fight where the blue-haired girl's in the cave. This results in a game-over by the way.
- One from heading to the right-part of town for the first time.
- One from doing a quest to meet up with a shota. I don't remember where I got the quest for it. You needed to wear the sweater for this one. There's also an animated one where you enter one of the right houses at night with that sweater on.
- If you wear the lewd nun outfit, there's an animated paizuri event to the south-east of the church. There were also still CGs in the right-side of town, I believe.
- During progressing through the main story, you can play as a nun that Emiliana interacted with in the beginning. You have the opportunity to sneak in a rudimentary stealth portion but if you get caught, you get a CG. I have no idea if it actually impacted something besides the CG.
- If you progress through the main story, you fight a succubus and some thugs or something. Winning or losing results in the same CG.
- If you progress through the main story, you reach some kind of adventurer camp or something and see a CG of the Succubus with the leader.
And my vague memory of what to do for plot.
- Talk until you're able to go to the Confessional.
- Go back into the church until the attack. Head upstairs. Defeat all the enemies.
- Head to town and head to the church or something. You'll eventually encounter the blue-haired girl in an argument. I kinda remember heading to the jail to the top-left of the church during this part, but I dunno.
- She gets dragged to a cave, which you go and save her. This unlocks the right-part of the town.
- You need to buy a non-typical nun outfit from her (she's at the docks) and go to the bar. If you head to the bar and try talking to someone who's seated at the top-right side. He wants to grab something from the men's toilets. Talk to him again once you're done.
- This unlocks the slums or something. One of the buildings, like right-most is how I'd describe it, has the succubus/thugs fight.
- If you head back to town, I think you unlock a forest area. If you go through that, you eventually meet up with some group of adventurers or something.
- They do some raid on a temple or something. You follow them in. Go through the area, you'll eventually be forced to attempt to leave before the temple starts breaking up. Go back towards the boss and you'll eventually end up in the main town again.
At this point, I didn't know what the fuck to do. I read something about buying another piece of clothing from the shop and using that to head to the tower up on the top of the map, but I haven't really been too motivated.
As a side note, the most recent version has all the animated CGs and stuff now, included in combat stuff and out-combat but animated stuff.