@nyafufufu
Excellent analysis. I agree, this girl has an abnormally stable focus on her goals (or people, in this case Jeha or the extras she probably will focus on later, which is how she began to see the extras just like you're guessing). I mean, 289 deaths before cracking? I probably would have started cracking before the 60's, and assuming I don't need to deal with the pain of death. Anyways, it's mildly clear that this girl is essentially a yandere without an actual person to go ~dere over.
Do you think she'll eventually figure out a way to pass on social relationships through resets like other Korean regressors do? The typical methods are manipulation or eerie familiarity, and I feel like she's the type to be give people weirdly friendly vibes after her ~1000th death or so and getting close to all the important extras later on, based on how she already is quite determined to take any action for success so far.