I first encountered this show when I was staying in Japan for six months last year. I found it in the internet when I was looking for sub-titled dramas to help me with my Japanese. My host mother warned me to stay away from it because she thought it was weird, but I found it delightful! Koyuki showed such conflicting character traits and Matsujun's spirit made my day every time I tuned in! I first saw him on "Hana Yori Dango", but I liked him much better in this!
Although the characters are interesting and well-developed, I was disappointed to find that they didn't change very much throughout the show. Their relationship grew, but they didn't really. Still, a fun time had by all (Even for Fukushima!).