Responses
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Jihun can't coz he is a character from the author's imagination. He doesn't exist outside of the novel. Soem is different because the author based him entirely on a real person because of which he got into an accident in real life and got transported into the novel. So he is the only one who has a real world existence and can leave the novel.
I’m confused, aren’t they unable to kill themselves? Jihun explained it, right?