Haruka Nakagawa

At the age of 14, Haruka Nakagawa participated in an audition for the addition of a 3rd Generation AKB48 member, and was accepted on 3 December 2006 as an AKB48 Team B. In October 2008, she was placed into a sub-unit named Okashina Sisters of AKB48 which is then renamed to Watarirouka Hashiritai with Ota Aika and Watanabe Mayu her fellow 3rd generation colleagues.

After the night of the 135th anniversary of Yomiuri Shimbun AKB 104 Senbatsu Member Sokaku Matsuri, 23 August 2009, the AKB48 personnel overhaul was announced. Haruka Nakagawa was promoted to AKB48's Team A since October 2009 and started going upstage as a member of Team A since 27 July 2010. On 24 August 2012, the first day of its Tokyo Dome concert series, AKB48 announced a reorganization of its teams. Haruka Nakagawa and Aki Takajo were sent to Jakarta to help AKB48's sister group, JKT48.

As the new AKB48 formation began on 1 November 2012, Haruka Nakagawa was officially transferred to JKT48 since that date. The Diversified Events on RCTI on 9 December 2012 was her first appearance as a member of JKT48. At JKT48's 1st anniversary concert in Gelora Bung Karno Sports Complex on 23 December 2012, Nakagawa was included in Team J together with Takajo and all of the 22 surviving first generation members of JKT48. Haruka Nakagawa performed with Team J on the first day of Renai Kinshi Jourei performance at JKT48 Theater on 26 December 2012.

Within a year, Haruka Nakagawa has appeared in about 20+ TV commercials and several TV dramas in Indonesia. She also got the center position for JKT48's "Fortune Cookie Yang Mencinta" (Koisuru Fortune Cookie 恋するフォーチュンクッキー, "The Fall-in-Love Fortune Cookie") MV that was released on 21 August 2013. Haruka Nakagawa also showed the other side of herself as a senior member of AKB48 by teaching and guiding her fellow JKT48 colleagues. Her hard effort has made her accepted, famous and loved in the society.

On 9 February 2014, AKB48's sub-unit Watarirouka Hashiritai held their last concert and the sub-group finally broke up. On 28 December 2014, she joined a new sub-unit of JKT48 named 4 Gulali and is the first sub-group from JKT48 that was formed. 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, Haruka Nakagawa announced her graduation from JKT48. Not only graduating from JKT48, because Haruka 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!" Haruka 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, Haruka 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, Haruka 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, Haruka 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.