Someone's Girlfriend

🇯🇵アイツノカノジョ · Aitsu no Kanojo

MangaShounenFinished🇯🇵 First published in 2022DramaEcchiRomance

Nikumaru story, art

Riku can’t get Shizuku out of his head to the point where she’s invaded his dreams. Then, one day, she stops by his house and comes on to him hard: “Do whatever you want to me.” The catch? She’s his best friend’s girlfriend. In their last year of high school, a dangerous romance brews! Note: Includes seven extra chapters.

Synopsis via AniList