Kojiro Cristóbal Tawara became an attorney because he believed that the way to return the profits invested in him to society was for immigrants who came to Japan with various circumstances to obtain special permission to stay in Japan. With his background of being born in Panama and raised in Brazil, he has been consulting with many clients who have roots in foreign countries. His clients come not only from Latin American countries such as Mexico and Brazil, but also from China, Russia, Myanmar, Malaysia, Vietnam, the Philippines, Ghana, Sudan, and many other countries. With a lifework of creating a society where people with foreign roots can feel close to the judiciary, he handles various types of requests, including general civil cases, domestic affairs, criminal cases, and status of residence cases. As a public interest activity, he has been entrusted by the family of a Sri Lankan woman who died at the Nagoya Immigration Office in 2021 to represent the plaintiffs in a lawsuit for state compensation, and is working to uncover the truth.