LEE SARANG, while she was under her former Guide's "spell," had hazy memories.
It was because Mo Hanjin used to "drug" her with his Guiding, so she wasn't herself most of the time.
She only returned to her senses after meeting Noh Yuno.
Slowly, her memories from the time that she was 'drugged' came back.
Those memories include watching Charles Kang and Song Heejin jump from one body to another.
Just from watching it happen often, she figured out how it worked.
She didn't become the second strongest Esper in the country just because she was strong— it was also because she could easily digest things related to fighting. That was how she knew that the souls of the people who had their physical bodies taken by Charles Kang and Song Heejin were trapped in their Cores.
And that was exactly why Lee Sarang stabbed Kwon Hojun in the chest.
"You…" Charles Kang wasn't able to finish his "monologue" because he coughed up blood. "Do you think I'll die if Kwon Hojun dies?"
