Chapter 584

A Surprise Challenger (意外な参戦, Igai na Sansen, "Unexpected Participation") is the five hundred and eighty-fourth chapter of Initial D.

Plot
Ryosuke Takahashi and Rin Hojo continue their race on Hakone Turnpike. They pass Junichi Sakamoto, the number 2 driver of Team Spiral, who calls Ryuji Ikeda, who was waiting in his Nissan Fairlady Z, and tells him that Rin is chasing a white car, and that he should be careful. Ikeda hangs up and drives onto the course. The FC and the R32 soon pass alongside him, and Ikeda begins to accelerate to keep up with them, entering their battle. Ikeda talks about how Rin will have to pay for breaking the rules of the mountain, as Spiral see themselves as the guardians of Hakone. He wonders who the driver of the FC is, as few people would drive lead against Rin. He acknowledges that it couldn't be just anyone racing, guessing that it may be Ryosuke. Ryosuke has a flashback to another conversation he had with Kaori.

Japan

 * August 6th 2010 (Tankōbon, Volume 41)

Chinese

 * September 15th 2010 (Tankōbon, Volume 41, Sharp Point Press)

English

 * July 20th 2019 (Digital re-release, Volume 41, ComiXology)

French

 * October 21st 2020 (Tankōbon, Volume 41, Kazé)

Characters (in order of appearance)

 * Ryosuke Takahashi
 * Rin Hojo
 * Junichi Sakamoto
 * Ryuji Ikeda
 * Kaori (flashback)

Cars (in order of appearance)

 * Mazda SAVANNA RX-7 ∞ III (FC3S)
 * Nissan Skyline GT-R V-Spec II (BNR32)
 * Nissan Fairlady Z Version S (Z33)

Quotes

 * "It can't be just anyone, but could it really be... him?" - Ryuji Ikeda

ComiXology version

 * Translates all sound effects into English

Notes & Trivia

 * This is the last chapter where Junichi Sakamoto appears.