i think jieun won't die because bum is NOT A KILLER and he's going to try to kill sangwoo since he doesn't love him anymore (ch.15) so they either run away together or jieun runs and she's going to find seungbae and he's going to save bum and that's how the bl will start because i refuse to accept sangwoo/bum toxic relationship to be the focus of this story, also seungbae is the only one who can save bum
Ji Eun will most likely die. Bum will most likely help Sangwoo kill her either willingly (because he listens to what Sangwoo says) or unwillingly (because he wants to save his own neck. literally.). Bum has BPD which can make him feel different things for Sangwoo as seen throughout the entire Killing Stalking series up until its current chapter. Bum will not be able to kill Sangwoo even if he tries because he does not have the physical capabilities to do so. Bum also cannot run away because of the current condition his legs are in. Ji Eun is handcuffed to the basement which means she is definitely no longer capable of running away. The door is also apparently locked and cannot be opened from the inside. The BL started from Chapter 1 when we learned that Bum had a thing for Sangwoo. The manhwa and its description are centered on Bum and Sangwoo who do, in fact, have a toxic relationship which is ultimately the focus of the story. Also, Seungbae, the only one who can save Bum, is probably running around with coffee cups in his hands right about now.