bool CPetActor::Update(DWORD deltaTime)
{
    bool bResult = true;

    // Ćę ÁÖŔÎŔĚ Á׾ú°ĹłŞ, ĽŇČŻµČ ĆęŔÇ »óĹ°ˇ ŔĚ»óÇϴٸé ĆęŔ» ľřľÚ. (NOTE: °ˇ˛ű°ˇ´Ů ŔĚ·± Ŕú·± ŔĚŔŻ·Î ĽŇČŻµČ ĆęŔĚ DEAD »óĹÂżˇ şüÁö´Â °ćżě°ˇ ŔÖŔ˝-_-;)
    // ĆęŔ» ĽŇČŻÇŃ ľĆŔĚĹŰŔĚ ľř°ĹłŞ, ł»°ˇ °ˇÁř »óĹ°ˇ ľĆ´Ď¶ó¸é ĆęŔ» ľřľÚ.
    if (m_pkOwner->IsDead() || (IsSummoned() && m_pkChar->IsDead())
        || NULL == ITEM_MANAGER::instance().FindByVID(this->GetSummonItemVID())
        || ITEM_MANAGER::instance().FindByVID(this->GetSummonItemVID())->GetOwner() != this->GetOwner()
        )
    {
        this->Unsummon();
        return true;
    }

    if (this->IsSummoned() && HasOption(EPetOption_Followable))
        bResult = bResult && this->_UpdateFollowAI();

    return bResult;
}