Previously, the officials asked the fans for help to contribute by giving ideas of what will become the project's name with the #NAMAHARUKAPROJECT (Haruka's Project Name) tag on Twitter. Members and costumes for the group were determined and decided by Nakagawa herself. They successfully performed their single "Chu Chu Chu Only For You" (Kimi Dake ni Chu! Chu! Chu!) And "Be Yourself" (Jibun Rashisa) at JKT48 3rd Anniversary at Tennis Indoor Senayan, Saturday 27 December 2014. At the JKT48 Concert Show Hour Setlist Best 30 2016 held on 27 February 2016 at Balai Sarbini, Jakarta, Nakagawa announced her graduation from JKT48. Not only graduating from JKT48, because Nakagawa did not want to go back to Japan after graduating from JKT48, she also decided to graduate from the 48 Group. Nakagawa had a farewell concert in Surabaya on 3 June 2016. In a concert titled "Wayahe Suroboyo, Rek!" Nakagawa has also given a special gift, which is cycling for 800 km from Jakarta to Surabaya from 23 May to 3 June 2016. For that, she were crowned the title, "Sang Legenda JKT48" (The Legend of JKT48). On 17 December 2016, Nakagawa held her graduation concert as well as the 5th anniversary of JKT48 at Trans Luxury Convention Center in Bandung, West Java. On 30 December 2016, Nakagawa held her graduation performance on the old Team T's side "Holding My Hand" and a new Team J until she was graduated from JKT48. She then also received another title as "Senior JKT48" (JKT48's senior). After graduating from JKT48, since early January 2017, Nakagawa started her solo career as an talent and actress under the management of dentsuXentertainment. She is named one of the Top 10 "Most Influential Women on Twitter" in 2016 and 2017 by the social media analytics firm Brandwatch, placing above Britney Spears, Oprah Winfrey and Alicia Keys. She is the only Japanese person in the list. In 2018, she is appointed as an ambassador of the "Commemoration of 60 Years of Diplomatic Relations between Japan – Indonesia" and also the ambassador of Goodwill between the two countries. She is now famous both in Japan and Indonesia, and is also touted as the most famous Japanese in Indonesia in the modern era. Personal life In 2011, Nakagawa revealed that her father is a former professional wrestler, leading fans to speculate that he is Koji Nakagawa of the Frontier Martial-Arts Wrestling promotion,