First Love Monster (初恋モンスター, Hatsukoi Monsutā) is a Japanese manga series written by Akira Hiyoshimaru.

[3] First Love Monster is written by Akira Hiyoshimaru, who began publishing the manga in Kodansha's shōjo magazine Aria on 28 January 2013.

Studio Deen produced the anime, with Takayuki Inagaki directed the series and Mariko Oka designed the characters.

She criticized the series for its attempts at serious romance in what was essentially a comedy, and also found fault with author's skill at drawing people.

She was most heavily critical of the age gap between the two romantic leads, commenting that upon examination, "First Love Monster's comedy is overwhelmed by its creepy factor."