Be the one is a song performed by South Korean vocalist BoA. It debuted on her third album LOVE & HONESTY and was re-cut for her eponymous thirteenth single. The Japanese version of the song is the main theme song for Samurai Warriors; it plays during commercials and the Japanese ending credits. BoA's participation was first revealed during the game's completion press conference; her prerecorded video message was a simple request for players to clear the game for her song.