Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
While this card is in face-up Defense Position, other "Bujin" monsters you control cannot be destroyed by card effects.
--武神器－チカヘシ
--Bujingi Warg
local s,id=GetID()
function s.initial_effect(c)
	--
	local e1=Effect.CreateEffect(c)
	e1:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetRange(LOCATION_MZONE)
	e1:SetTargetRange(LOCATION_MZONE,0)
	e1:SetTarget(s.target)
	e1:SetCondition(s.con)
	e1:SetValue(1)
	c:RegisterEffect(e1)
end
s.listed_series={SET_BUJIN}
function s.con(e)
	return e:GetHandler():IsDefensePos()
end
function s.target(e,c)
	return c~=e:GetHandler() and c:IsSetCard(SET_BUJIN)
end