Im Pretty new here tho was curious to know whether it requires level 20 or more to unseal the Izumo Dungeons to reach Kyoto since all the dungeons are sealed for me even when i have the quest to do them.

you have to equip a purifying magatama, as mentioned in the story dialogues

DarkDarkness wrote:you have to equip a purifying magatama, as mentioned in the story dialogues

tyvm