What is "antragsdelikt"

In the criminal law of some countries, an Antragsdelikt (plural Antragsdelikte) is a category of offence which cannot be prosecuted without a complaint by the victim. The same concept has been adopted in Japanese law under the name shinkokuzai, in South Korean law under the name chingojoe, and in the law of the Republic of China (both during the early Republic period and on Taiwan) using various terms.