With regard to the status as a dependent of a person who ceases to be a dependent due to the amendment of the provisions of Article 1, paragraph (2) of the Health Insurance Act and who falls under any one of the following items, the provisions then in force continue to govern, notwithstanding the provisions amending paragraph (2) of that Article, only while the person continues to belong to the same household as the insured person in question or the person who was an insured person and is financially supported exclusively by that person; provided, however, that this does not apply to insurance benefits other than the injury and sickness allowance concerned and injury and sickness allowance for a sickness arising from the sickness or injury that was the grounds for payment of that injury and sickness allowance in the case of a person who falls under item (i), or to insurance benefits other than dependent's medical expenses for the sickness or injury concerned and the sickness arising therefrom in the case of a person who falls under item (ii).