from red to green kou was like a yellow flag

At first kou and futaba was kinda a mess, but I think the story was more on their character learning from the past, I became to like them. Being how kou was a red flag in the beginning, but at the end of the story base on the color wheel from red to green he was like a yellow flag ╮(￣▽￣)╭. But could be biased.. this was my first anime, and I've kept rereading it. Will always have a special place in my heart .(≧∀≦)