When Japan’s top heroes welcome America’s #2 Pro Hero into their agency, what begins as an international partnership quickly becomes something far more complicated. As Y/N grows closer to Shoto Todoroki, Katsuki Bakugo, and Izuku Midoriya, the three heroes realize their relationship no longer feels complete without them. Between high-stakes missions, quiet moments, and feelings none of them expected, four heroes must decide if they have the courage to turn an unbreakable trio into something even stronger.