Ronmione, I don't want to quote your post because, well, lots of spoilers and I'm not that good in concealing spoilers XD So. Yeah.
SPOILERZ BELOW LIEK WHAT?!
Okay, now even though I love Shunsuke to bits and I felt really bad for Koichi, I still rooted for Mika and Ryosuke. I mean, it was their love story. Koichi was one of the many antagonist in this story trying to get in the way of Mika and Ryosuke's love story. Yes, Koichi was in love with Mika for a very long time, but... You have to wonder, was it really love, or was it that his family was just on him so much about marrying her? His mother is EVIL, damnit. Manipulative at that, and I think Koichi was a poor victim of that manipulating WENCH. ( Can you tell I hate his mother? ) For the while him being stabbed and being paraplegic ( ... I CRIED, damnit. ) It was unfortunate, but, I think he was doing it more for himself than Mika's father... Not saying he deserved it because he did NOT. Now, the whole, "Mika's soo obsessed with her mother's love-story" thing. Well... Come on. Whenever trying to build a relationship with someone she liked, with a Japanese guy, it never lasted because she was Korean. She was always defined as a Korean and not as herself. Not the "real" her. The whole point of Tokyo Wankei was Mika's quest to find the person to find the "real her". And in Ryosuke, she found that. Ryosuke didn't care if she was Korean or not. Hell, he knew about it for a long time but didn't want to say anything until after SHE wanted to say it. Otherwise, it would feel like he was accusing her of lying or something. He was patient, because he really loved her. He was prepared to sacrifice his happiness with that whole... Let's say "misunderstanding" very much like Marmalade Boy, might I add, but meh. Besides, if Mika went through with marrying Koichi, and still truly loving Ryosuke, that would only hurt Koichi in the end. Like Ken-san said to Koichi, "I really understand how you sincerly love Mika. But I have to ask you, can you really be happy just because you love her? I'm sure she has some kind of love for you, since she decided to marry you. But... It's just sympathy. The man whom she purely loves is Ryosuke. Are you still happy? Your heart, doesn't it ache? No matter if you are Korean or Japanese, what you have in the center of your body, the human heart should be the same, right? I'm not telling you to think about other people's happiness, but why don't you care about your own happiness?"
Wouldn't it be better if Koichi found someone, whether Korean or Japanese ( and in my mind a mexican-american. ~.~;;; ) that would love him not out of obligation or in quote, "sympahty" but to love him, and to steal the most used phrase in this drama, the real him? A person where he would have his own true happiness?
Yes, Koichi would probably be the best, appropiate choice for Mika, but... True love never did come easy, does it? Especially in dramas and movies. For appearances sake, Koichi would be the perfect choice, he's well-mannered, sophisticated, white-collared. As Seppydude said, Ryosuke is down to earth, not the best dresser, but... He's very earnest. To be with someone just because they're white-collared, wouldn't that be considered superficial? The thing about Mika and Ryosuke is that they look beyond looks and blue/white collared status. Mika loved Ryosuke for him. Ryosuke loved Mika for her. And, hopefully, Koichi will find someone to love him for him and vice versa.
Gomen ne, this post became a bit long, didn't it? XD