Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If your opponent controls a monster and you control a Normal Monster: Choose 5 Normal Monsters in your Deck, add 1 of them to your hand and banish the rest.
--魂の開封
--Soul Unseal
--Scripted by AlphaKretin
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_REMOVE+CATEGORY_SEARCH+CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCondition(s.thcon)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
end
function s.cfilter(c)
	return c:IsFaceup() and c:IsType(TYPE_NORMAL)
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetFieldGroupCount(1-tp,LOCATION_MZONE,0)>0 
		and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,nil)
end
function s.thfilter(c)
	return c:IsType(TYPE_NORMAL) and (c:IsAbleToHand() or c:IsAbleToRemove())
end
function s.rescon(sg,e,tp,mg)
	return sg:FilterCount(Card.IsAbleToHand,nil)>0 
		and sg:FilterCount(Card.IsAbleToRemove,nil)>3
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_DECK,0,nil)
	if chk==0 then return aux.SelectUnselectGroup(g,e,tp,5,5,s.rescon,chk) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_REMOVE,nil,4,0,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_DECK,0,nil)
	if #g<5 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local sg=aux.SelectUnselectGroup(g,e,tp,5,5,s.rescon,1,tp,HINTMSG_ATOHAND)
	if #sg~=5 then return end
	local sc
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	if sg:FilterCount(Card.IsAbleToHand,nil)>0 then
		sc=sg:FilterSelect(tp,Card.IsAbleToHand,1,1,nil)
	else
		sc=sg:Select(tp,1,1,nil)
	end
	sg=sg-sc
	if #sg>0 and Duel.SendtoHand(sc,nil,REASON_EFFECT)==0 then
		Duel.SendtoGrave(sc,REASON_RULE)
	end
	Duel.Remove(sg,POS_FACEUP,REASON_EFFECT)
end