Obsessive Fangirl Horror: I Want to Be That Streamer's Girlfriend (ガチ恋粘着獣 ～ネット配信者の彼女になりたくて～, Gachi Koi Nenchaku-jū: Net Haishin-sha no Kanojo ni Naritakute) is a Japanese manga series written and illustrated by Seira.

It began serialization on Coamix's Comic Tatan website in March 2020.

A live-action television drama adaptation aired from April 2023.

Written and illustrated by Seira, Obsessive Fangirl Horror: I Want to Be That Streamer's Girlfriend began serialization on Coamix's Comic Tatan website on March 13, 2020.

[3] The series' chapters were collected into six volumes originally released by Takeshobo from August 20, 2020, to December 20, 2021.