 If you liked
K-On!
|
 ...then you might like
Yuuki Yuuna wa Yuusha de Aru
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Yuuki Yuuna wa Yuusha de Aru and K-On! are both anime featuring 4, and later 5, girls, and involve a school club. While Yuuki Yuuna is more serious than K-On! and is a magical girl anime while K-On! is a music anime, they are both anime that tell the story of a group of girls growing closer.