Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
When this card is Normal or Flip Summoned: You can target 1 other monster you control; return that target to the hand. You must control another face-up "Gishki" monster to activate and to resolve this effect.
--リチュア・キラー
--Gishki Reliever
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetCondition(s.condition)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_FLIP_SUMMON_SUCCESS)
	c:RegisterEffect(e2)
end
s.listed_series={SET_GISHKI}
function s.cfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_GISHKI)
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,e:GetHandler())
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and chkc:IsAbleToHand() end
	if chk==0 then return Duel.IsExistingTarget(Card.IsAbleToHand,tp,LOCATION_MZONE,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local g=Duel.SelectTarget(tp,Card.IsAbleToHand,tp,LOCATION_MZONE,0,1,1,e:GetHandler())
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,g,1,0,0)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	if not Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_MZONE,0,1,e:GetHandler()) then return end
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SendtoHand(tc,nil,REASON_EFFECT)
	end
end