Battle of Big Heroes and Teen Titans and a Fangirl

Joyce is a pure Fangirl. No fangirl is more charged than her. Teen Titans? She can ace that test. Big Hero 6? She could live there. But when she's plunged into a world where these two major teams clash, and are fighting helplessly against a joined villain force... fangirl knowledge isn't going to help. Joyce has no choice but to lead the fight. Will she lead these two teams to victory? Or will she rip reality?