Please note that this is an article on the Rank B World Boss in the SNS version, if you are looking for the article on the enemy/Rank C World in the mobile version then you should head to Gedo Sessho Seki (mobile). For other uses, see the disambiguation page
"Summoned by Kojima, Gedo Sessho Seki is the guardian of his Third Laboratory."
Gedo Sessho Seki is a Rank B World Boss in the Hunting House that was originally a level 25 world boss before the Hunting House update on April 2, 2012. 5 Kari Badges are required to battle it.