@Firedragon128v
Yeah, unlikable. Honestly, would be a pretty terrifying person in real life. I expect that there will be some character growth somewhere, but without spoilers, I can only guess which direction that character growth will go. Will she take a 180° turn and realize that the church organization is in the wrong? Will she manage to rationalize and convince others that she's doing the right thing? Will she just make an exception for the other transmigrated student and hand-wave away any double standards? Even if she does change for the better, I don't know how long the audience will be reading about a deceitful murderer before things change. (Although I'm pretty confident that Momo will remain annoying for the duration of the story.)
There are people who exist on Earth, in reality, that could destroy human civilization as easily as saying "fire the missiles." While I think a lot of people would agree that the world would be a better place without them, there hasn't been a need for a secret society dedicated to killing them. Rather, in terms of dealing with evils, we judge people for what they've done, not what they might, maybe do sometime in the future.
I really want to be able to like this too... perhaps I'll have to wait until it is translated a bit further before grabbing spoilers that way.