K-On! 'Don't Say 'Lazy'' - Here is a fan picture of the popular anime and manga in Japan 'K-On!' which is about music and friendship. The background and outfits are taken from the the ending credit theme 'Don't Say 'Lazy'' promotional video. The picture shows 4 of the main characters from left to right: The day dreamy keyboardists Tsumugi Kotobuki, the super hyper-active drummer Ritsu Tainaka, the shy and very cute bassists Mio Akiyama and lastly, the airhead yet good-hearted of a guitarist Yui Hirasawa ,