tgp_japan_assert_regional_dominance_war_outcome_effect

tgp_japan_assert_regional_dominance_war_outcome_effect = {
	create_title_and_vassal_change = {
		type = created
		save_scope_as = change
	}
	change_title_holder = {
		holder = root
		change = scope:change
	}
	every_de_jure_county = {
		limit = {
			holder.top_liege = root.top_liege # in same realm
			holder.liege = root.top_liege # is not already a sub-vassal
			NOR = {
				holder = root # held my me
				holder.liege = root # or my vassal
				holder = { is_liege_or_above_of = root } # or my liege
				this = holder.top_liege.capital_county # stop transfer of capital
			}
		}
		if = {
			limit = {
				holder = {
					NOT = { government_has_mechanic = administrative }
					highest_held_title_tier <= tier_county
				}
			}
			holder = {
				change_liege = {
					liege = root
					change = scope:change
				}
			}
		}
		else_if = {
			limit = {
				holder = {
					OR = {
						government_has_mechanic = administrative
						this = root.top_liege
					}
				}
			}
			change_title_holder = {
				holder = root
				change = scope:change
			}
		}
	}
	resolve_title_and_vassal_change = scope:change
}

As written in game/common/scripted_effects/10_dlc_tgp_japan_scripted_effects.txt.