The official website for Haiyore! Nyaruko-san has revealed that the anime will be getting a second season sometime in the future.
(Anime, Haiyore! Nyaruko-san)
I really liked the first season for this so I'm glad that they are making a second one. Nyaruko is absolutely crazy as the female lead, always trying to get Mahiro to love her despite the constant forkings.
770°