Responses
Ngl seeing how the sister casually dates men its probably going to be something like Bumseok didnt want to ruin his friendship with FL so the sister offers to date him so he can forget her or something and FL can move on with her life, also the senior mentioned the sister being jealous of FL and how she hates being compared to her, sis probably thought she could feel better about herself by having something FL couldn't only for Bumseok to be unable to forget FL since yk they're sisters.
Lwk the sister better have the most beautiful reason to kiss her sister’s crush, who she knows her sister likes and has been crying about for months and years about it. Because if I were in her shoes, I’d deadass stop talking to my sister and snitch completely to my crush. Clearly mc isn’t smart enough to do that, Anyways it was kinda shocking to hear that the sister thought that the mc received more love than her like hope she’s truly not as evil as she appears in my interpretation