Solo is the Lone Soldier (Kokou no Senshi) and sole survivor of Mu. He constantly battles with Rockman in order to obtain his OOPArt - the Sword of Berserk. He has a mysterious power to Denpa-Henkan using his loneliness in order to become Burai - Rockman's nemesis during this season. Burai is formidable with both a sword and with martial arts, making him a very tough foe.
