Wow, this is definitely a classic. The archetypes themselves have been combined quite often, but there's a subtlety and nuance to both Yuri and Misono that you rarely find in romances, particularly those based on 'opposites attract' gimmicks. Every chapter was meaningful, every conversation felt heartwarming, and the transition from friends to lovers to wives was absolutely perfect. I had a massive grin on my face from cover to cover, and would easily class this as one of the better yuri works I've read.