If a single action involves a claim related to personal status litigation and a claim for damages arising from the facts that constitute a cause of action associated with the claim (limited to the claim from one of the parties to the other party of the personal status litigation), the action may be filed with a Japanese court, but only if the Japanese courts have jurisdiction over the claim related to that personal status litigation.
一の訴えで人事訴訟に係る請求と当該請求の原因である事実によって生じた損害の賠償に関する請求（当該人事訴訟における当事者の一方から他の一方に対するものに限る。）とをする場合においては、日本の裁判所が当該人事訴訟に係る請求について管轄権を有するときに限り、日本の裁判所にその訴えを提起することができる。
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personal status litigation
「人事訴訟」
Litigation on a personal status action (人事に関する訴え): an action through which a person seeks to form a personal status relationship (身分関係) or a declaration whether one exists, such as an action to nullify or rescind a marriage, an action for divorce, an action to rebut the presumption of legitimacy, an action for filiation, an action to nullify or rescind an adoption, or an action to confirm whether a marital, parent-child or adoptive relationship exists.
Defined inArticle 2, paragraph (1)· applies throughout the law