The power of the world is not something that can be easily resisted by a Domain, and although a Domain is the foundation of a world, it is never truly a world itself until it has grown into one. To attempt to use the power of the Domain to confront an attack of a higher level is, of course, a delusion.
Those King Level bosses treated the attack from that powerful being as just a normal Magic Attack, and naturally, they didn't take it seriously when facing it. However, when that strong individual's attack hit their King Level Domains, the bosses immediately realized something was wrong.
The Domains that could originally dissolve those magic attacks, when facing the magic showcased by that strong individual, seemed to encounter a resistance ability. It was as if the magic itself possessed a Demons Breaking Attribute, flying directly toward those King Level bosses without any disturbance from their Domain Abilities.
