User blog comment:Jopjopjop/Volume 18 Spoilers/@comment-23847729-20140622210010/@comment-23847729-20140623232243

The other Sekiryuutei never went to the point where they are able to kill both God and Maou. Some of them may have died due to the Juggernaut Drive, others may have died from something else. I don't think they have ever experience the things that Ise is going through or what he will do (fight Trihexa).