There’s No Freaking Way I’ll be Your Lover! Unless… (Manga) Vol. 4

ALL’S FAIR IN LOVE, WAR, AND VIDEO GAMES!
Still fake-dating Satsuki, Renako finds herself caught in a dangerous love triangle between herself and the two starlets of Ashigaya High. As their conflict reaches its peak, and Satsuki’s true feelings towards Mai begin to emerge, Renako suggests a three-way battle to save her clique, her peaceful high-school life, and above all, her friends’ relationship!
Series Overview: After a lonely three years as a junior high outcast, nerdy Amaori Renako vows to reinvent herself as a cool kid and attain her ideal high school life. She soon finds herself suffocating under the pressure to keep up appearances, but an encounter with school superstar Oduka Mai grants her an unexpected confidante and best friend. That is, until Mai suddenly confesses her newfound love for Renako and “friendship” flies out the window! Friends or lovers—the battle for the future of their relationship begins!