 If you liked
K-On!!
|
 ...then you might like
Koisuru Asteroid
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Obviously both are about school clubs, one being a light music club and the other being an astronomy/geology club. Asteroid focuses more on the actual club activities, K-On!! does a lot more goofing around, but both convey the moods of their clubs well. If you want something easy to watch that's fun and enjoyable, both are good.