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To be honest I kind of hope that Seju won't be the first person Won could have feelings for, cause we've already had a similar situation in case of Sungji, when Sumin was her first love and it would be nice to see how two people, who already went through some sort of relationships, can be happy together all over again. Tho this is just me personal preference, cause I'm not the biggest fan of this experienced-completely inexperienced/pure kind of couple in yuri, there's just so much of it out there
And just because Won looks pure, doesn't necessary mean she was never with anyone before :p I doubt that she has feelings for Seju so quickly, after all there are only three chapters out and it looks like it may be a slow-burn
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She does give off the vibe of someone who has a dark past of her own and is in the midst of trying to recover from her trauma, something she shares in common with Seju. If I have to take a wild guess of her backstory, she was a top star in the swimming world before she sustained an injury or caused a scandal that ended her career (being caught having a lesbian relationship), hence why she ran away and isolate herself in a deserted villa.
Won does seem to be interested in Seju, perhaps sensing that they are more alike. But I reckoned she won't act on her feelings, fearing she would end up hurting her like she may have done with her previous partner. Seju seems more likely to fall pretty hard for Won, but she would probably remain in denial.
I think they might need a third character in order to help the two realize their feelings for one another. Dammt. Where's Nammi when you need her lol?
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I also think that Seju will be Won’s first, sexually speaking. My guess about her past is that she had a girlfriend when she was young and they were caught in their romantic relationship so she was forced to leave. Or maybe her gf died young so she moved out to start over again.....i don’t know, but it’s good to see their relationship evolving and reading everyone’s speculations !
I'm so curious if Won had been in love with someone before, she looks so pure and innocent that makes me feel like Seju would be her first in everything. I think the reason why she ran away from mainland has nothing to do with love. Her poker face is hard to read as well, do you think she already has some feelings for Seju? I suddenly have a feeling that Seju will be the one to fall first lol.