I really enjoyed episode 21 of Itazura na Kiss! Finally, Kotoko's found her place in life. I wondered for the longest time if she would just be a klutz all her life and if she would ever find something that she could make her own. I think she finally has. While she may still be a klutz, she has become a nurse that the patients can depend on even when she would love to ring their necks.
I also love that Naoki appears to have become more human and that he obviously appreciates Kotoko more.
Thanks so much for posting this. It is indeed one of the more enjoyable animes I watched in a long time.