 If you liked
Watashi ga Motenai no wa Dou Kangaetemo Omaera ga Warui!
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 ...then you might like
Outbreak Company
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Both have main characters who believe that they can survive life with their knowledge of anime. Even though one fails (Watashi ga) and one does not (Outbreak Company), they are pretty similar character-wise. The main character has a fetish for anime girls/guys. The supporting characters come and go at times.