Boyish GirlfriendBoyish Girlfriend.

Boyish Girlfriend (ボーイッシュ彼女が可愛すぎる, Bōisshu Kanojo ga Kawaii Sugiru) is a Japanese manga series written and illustrated by Gyūnyūmugigohan. It began serialization on the author's Twitter account in August 2024. It was later acquired by Square Enix who began serializing on the Pixiv Comic website under their Gangan Pixiv brand in March 2025.