This manhwa will possibly put your heart through a blender if you don't spoil yourself first! I'm glad I knew who Joonha was going to end up with before I read the story because then I didn't let myself get too attached to any other possibility.
That said, this is an excellent gender bender. Joonha starts off as an arrogant, sexist man who believes all women should be meek housewives. He toys around with Heewon's feelings after she confesses to him (saying it's "unattractive" for a woman to confess), even though he really likes her too. When "he" changes to a "she", he freaks out and says something like: "I can't believe I have to give up all my ambitions and be a housewife now!" However, she eventually realizes that her sex isn't a limitation, she can still act "manly", and even as a woman, she can be ambitious.
Just to clarify for everyone who gets confused:
Joonha is the main character. Jinhoo is his male childhood friend. Taehyun is the man Joonha meets after she changes sex. Heewon is the girl whom Joonha loved before she changed sex. Then, there's some girlfriend or whatever of Jinhoo called Hyewoon or whaaatever.
HOW DOES JINHOO NOT END UP WITH JOONHA?!
Okay, you know that's what most people are wondering. I know it's practical for Taehyun to be with Joonha because he understands her ambitions and can her become the business tycoon she aspires to be, but he pales in comparison to Jinhoo for sure.
But what bugs me most is that Jinhoo really got the short end of the straw--he seriously is going to marry someone he realized he didn't love? He got back together with Hyewoon out of pity when her family suddenly died (so contrived, ugh) and he's just going to resign himself to marrying her?
There was no indication that he fell in love with her (ESPECIALLY when he tried to chase who he thought was Joonha through a crowd just the night before he proposed), just that he was sorry that he kept her "waiting". More like, "Hey, I'm still totally in love with my best friend but I still feel sorry for you so I'll marry you instead." Um, if you don't love her, you have NO obligation to be with her, no matter how bad you feel for her. I can't believe the mangaka could make him do such a stupid thing--it was like she couldn't think of a legitimate reason why Joonha and Jinhoo shouldn't be together, so she quickly made up a lame ending.
Also, what was up with Heewon and Taehyun's friend? For ABSOLUTELY NO REASON Taehyun's friend starts following her around, ditching his business ventures and future ambitions just to get ordered around by her! There's no reason why he fell in love with her, since she was only ever mean (seriously mean, not I-secretly-like-you mean) to him. He even leaves the country for her, what a stupid minor plot.
I felt that the way the manhwaga showed how love transcends gender was really well done. Heewon still can't stop loving Joonha even though she's now a woman and Jinhoo falls in love with Joonha even though he believes she's a man. Even Taehyun says that if Joonha was a man, he'd still love her and be gay.
In the end, my heart still goes to the pairing that doesn't happen (made worse by the fact that they said they'd never see each other again--what's up with that?!). I was satisfied from a practical point of view by the ending, but not emotionally. When two people say to each other things like "You're the other half of me" and "I'll never find another person like you ever again" and "I love you beyond gender" but STILL don't end up together, it's got to break your heart a litte. Unfortunately, in real life, you don't always end up with the one you love the most.