User blog comment:Trihexa/Top 10 Most Powerful Beings In The World (Unofficial)/@comment-85.1.62.158-20170310003239/@comment-1359322-20170310010548

Well Rose was able to develop a seal for 666 too. If she had more time, Rose may be able to develop an even better seal for 666. So sealing 666 doesn't really seem that impressive anymore. ( ._.) The thousand of forbidden seals does a bit i suppose.