Obsessive Fangirl Horror

• Name — Obsessive Fangirl Horror: I Want to Be That Streamer's Girlfriend • Ja Kanji — ガチ恋粘着獣 ～ネット配信者の彼女になりたくて～ • Ja Romaji — Gachi Koi Nenchaku-jū: Net Haishin-sha no Kanojo ni Naritakute • Genre — * Mystery • Romance • Suspense

• Type — manga • Author — Seira • Publisher — * Takeshobo (1–6) • Coamix • Imprint — * Bamboo Comics Tatan (1–6) • Zenon Comics • Magazine — Comic Tatan • First — March 13, 2020 • Last — February 28, 2025 • Volumes — 16

• Type — drama • Studio — ABC Television • Network — ABC TV, TV Asahi • First — April 9, 2023 • Last — June 11, 2023 • Episodes — 10

• Portal — yes Obsessive Fangirl Horror: I Want to Be That Streamer's Girlfriend is a Japanese manga series written and illustrated by Seira. It was serialized on Coamix's Comic Tatan website from March 2020 to February 2025. A live-action television drama adaptation aired from April 2023.

Kaguya Hinaki is a female college student who is highly regarded by her classmates due to her attractive appearance. However, she had a secret she couldn't tell anyone: she was obsessively in love with Subaru, one of the members of Cosmic, a popular online streaming group. One day, a message from an unknown account comes to Hinaki via social media, who wishes to be able to date Subaru, and will answer her intense passion and lead her life to change completely.

Written and illustrated by Seira, Obsessive Fangirl Horror: I Want to Be That Streamer's Girlfriend was serialized on Coamix's Comic Tatan website from March 13, 2020, to February 28, 2025. The series' chapters were collected into six volumes originally released by Takeshobo from August 20, 2020, to December 20, 2021. Coamix later began releasing new volumes from April 20, 2022, with reprints of the previous six released on April 1. Sixteen tankōbon volumes were released up until August 20, 2025.

A 10-episode live-action television drama adaptation was announced in January 2023. It aired on ABC TV and TV Asahi from April 9 to June 11, 2023.