From an interview the author was in "My comic is focused on SMDS relationships, not the heterosexual relationship. Doona is a character that wants submission and dominance, not heterosexual sex."
Thank you. I'm still blown away someone left a long rant on another site about how they were dropping the series because Gyerin "is a lesbian and it's disgusting she was forced to have hetro sex". Whatever happened to being bisexual, not to mention she had a date with Haesol before and was alarmed she kept thinking about being dominated by Doona.
The direction of the webtoon so far (as of 40 chapters) is great. I'm glad bisexuality is getting a spotlight (especially being a korean webtoon). There is even possibility of male bisexuality, though not confirmed so far. Just that the male who wants to dom Minho was also accused by Minho that he stole Doona from him. I hope that's explored.
I just want to drop this comment here before fighting and badmouthing happens like elsewhere where I read some raws about the sexualities of Doona, Haesol, and Gyerin.
Doona and Gyerin are bisexual women.
Previously thought themselves to be straight but soon discovered they were attractive to one another and proceed to have great sex.
Haesol is straight.
Insofar of the series, there has been no inclination of him being attracted to other men, but, maybe like with the ladies, he'll have a self discovery moment.
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Doona is a Sadistic Domme who is more interested in dominating and being in control when having sex or doing a scene.
Both Haesol and Gyerin are Masochistic Submissives.
Haesol is a newbie to the whole getting pleasure from pain, following orders from his Domme, communicating while doing a scene, and generally being in a BDSM relationship.
Gyerin has a bit more knowledge and experience than Haesol, plus she's not afraid to speak her mind or ask for what she wants, but she also hasn't applied them much or at all when having sex with someone.
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TLDR
Doon is a a Bisexual Sadistic Domme.
Haesol is a Straight Masochistic Sub.
Gyerin is a Bisexual Masochistic Sub.
Please feel free to correct me on anything if I'm wrong and to add more facts.
Thank you