A combination of the Super Smash Bros.Ultimate arrangement and the Japanese vocals of the Main Theme of Fire Emblem Fates - Lost in Thoughts all Alone. (AKA "Hitori Omou" in japanese). Lyrics are sped up to match the pace of the song.

The Super Smash Bros Ultimate Arrangement seems to contains part of "End of All" from the Fire Emblem Fates soundtrack. Japanese vocals sung by Renka.