Please check it out! > example here People with an inheritance born from the same parent. Also, as a result of marriage etc, those who became a relationship to call the same person as parent. Japanese says "Kyo-dai".
people of ground nadirPlease check it out! > product for example It is a fictional human being other than human beings living in the underground space. Japanese says chi-tei-jin.地底人 ちていじん