[1] She has been a member of the United Nations Committee on the Rights of the Child (CRC) since 2017 and served as its chairperson from May 2021 to May 2023[2] succeeding Ann Marie Skelton.
She is the Rotating Honorary Chair in Enforcement of Children's Rights (2023/2024) at Leiden University.
[8] Otani started her career as a practicing lawyer (attorney at law) when she was admitted to the Tokyo Bar Association in 1990.
[9] She was appointed as an alternate representative of the Japanese delegation to the 60th and 61st General Assembly in 2005 and 2006, as a Vice-President of the Japan Women’s Bar Association at the time.
[15] During the chairperson’s term, she actively supported the promotion of mainstreaming of child rights throughout the United Nations system.