Personnage
Male · Âge inconnu
Kojiro Sasaki's a famous swordsman from Japan, known as "History's Greatest Loser". ~!Kojiro Sasaki is Humanity's representative in the third round of Ragnarok.!~
Record of Ragnarok
Record of Ragnarok II
Shuumatsu no Valkyrie Mini Anime
Record of Ragnarok II Part 2
Record of Ragnarok III