This drama is so under-rated, it's not even funny. I LOVE this drama! The actors do a fantastic job! Everything just feels so real. The romance is bitter-sweet and filled with innocence (hence the title.) I loved the song by Hikaru Utada "Eternally". It goes well with the drama. I also love the fact that the main girl is Christain. Not many Japanese are Christain, so it's nice to see it in dramas. This drama will make you cry, smile, laugh, and sad all at the same time. It is so simple yet so sweet. The two must overcome serious obsticles to be with each other, so much so that it would tear anyone apart. When this was airing, I would rewatch episodes while I waited for the next one to come out. The only thing I really didn't like was the end. I thought it was a bit off, but that's just me. I was still satisfied with it though. I would recommend this drama to anyone. Watch this!