around ch. 40-ish the MC claimed to see the future; where does that go? No where!

The dad and brother supposedly died in battle, but have actually turned into demons due to a contract. This all happens at around ch. 300, with not much foreshadowing.

Then Saint of Light, which was only mentioned in the OG story, but not shown cause Kang Juhyuk was too OP for the Demon King. Then people go on the search for the Saint, which people around the MC hide cause they don’t want her to be taken away. At around ch. 200, it gets revealed—but nothing much changes. Then the author realizes they haven’t been to the academy in a while, so they do test in dungeons that were super boring.

There was also a part where the MC becomes a partial demon through a ritual around ch. 150, which has her unlock the Demon Gacha—boosting her demon abilities. It increases her physical abilities, which is a nice improvement from her originally being physically weak compared to other students, but worries that people would attack her due to being corrupted by demons.

MC mentioned how her ability (Gacha) comes at a cost of anything she possesses. Only one time, she uses her Gacha at the cost of memories, which when she was pressed on what she gave up when an attack event occurred—she didn’t respond, since she’d have to say she gave up her past-life’s memories. So the friends come up with that she lost her memories due to her obscureness of not remembering her past (before possession) as Luna.

It goes on for a while before she finally finds out her friends think she spends her memories, and reaffirms them that she can use anything as a cost, not only her memories.

In the final battle:

She does use all of her past memories in the Gacha to win against the Demon King. It was an outcome predicted when the plot was introduced.

But gains not only all her memories as the Korean back, but the original Luna’s memories as well for defeating the Demon King as awarded by the system. Of course, this was at the cost of a Gacha of OP abilities that could literally transcend reality, but it’s obvious that memories would’ve been chosen. I just wish the MC would’ve lived on as Luna, since they’ve always been shown in their minds how much of their Korean past has blinded them from their relationships of the people in this world’s life.