Code of Civil Procedure Article 432

The parties may, without waiting for a summons and on their own initiative, appear before the court together during the ordinary court day to present their oral arguments.In the case provided in the preceding paragraph, the initiation of the action shall be indicated in the oral-argument transcript and the parties shall be deemed to have agreed to apply for a summary proceeding as provided in the third paragraph of Article 427.
中文原文 民事訴訟法第432條
當事人兩造於法院通常開庭之日,得不待通知,自行到場,為訴訟之言詞辯論。
前項情形,其起訴應記載於言詞辯論筆錄,並認當事人已有第四百二十七條第三項適用簡易程序之合意。

English translation for reference only; the Chinese text prevails. Not legal advice.