Haraguchi made his debut as a professional on 25 May 2008, in the J. League Cup match against Nagoya Grampus.[4] He scored his first professional goal against Nagoya Grampus in a J. League Division 1 game on 12 April 2009.[5]
Hertha BSC
On 25 May 2014, it was announced that Haraguchi had been signed by Hertha BSC.[6] He scored his first competitive goal for Hertha on 16 August 2014 in a 4–2 win during the first round DFB Pokal game against FC Viktoria Köln.[7] He scored his first Bundesliga goal on 14 March against Schalke 04 to put Hertha 2–1 in front.
In January 2018, Haraguchi joined Fortuna Düsseldorf on loan until the end of the season.[8]
Fortuna Düsseldorf (loan)
While on loan at Düsseldorf for the 2017–18 season, Haraguchi played a key role in helping the side gain promotion to the Bundesliga.[9]
Hannover 96
On 11 June 2018, Haraguchi announced that he had reached an agreement to join Hannover 96 for the 2018–19 season.
VfB Stuttgart
On 30 January 2023, Haraguchi signed for VfB Stuttgart on an eighteen-month contract.[10]
On 18 May 2024, VfB Stuttgart announced that Haraguchi will leave the club after this season when his contract expires.[11]
International career
2011 AFC Asian Cup
Haraguchi was elected as one of the preliminary registration members on Japan's 50-man list.[12]