 If you liked
Wotaku ni Koi wa Muzukashii
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 ...then you might like
Wotaku ni Koi wa Muzukashii OVA
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The OVA focuses on Kabakura's and Koyanagi's past (The Green and Orange haired people if you forgot the names). It has all the characters that you love the original show, same humor, and animation. It feels just like another episode of the show, so if you liked the original show, I would definitely recommend watching this.