If this game let us change the lead character of Duo and Harmonic Heroes
/r/FireEmblemHeroes: Fire Emblem Heroes - Open the gateways between worlds, Heroes at your side. - A subreddit dedicated to Fire Emblem Heroes, Nintendo's 3rd mobile title released on February 2nd, 2017. The game is available worldwide on iOS and Android. - November 14, 2021 - 18:14