Koichi Hirose (Echoes) (story arc)

Koichi Hirose (Echoes) (広瀬康一(エコーズ)) is the fourth story arc in Diamond Is Unbreakable.

Summary
Jotaro, perceived as the greater threat, is warned by the user of Red Hot Chili Pepper to leave Morioh.

Koichi is extorted by Tamami Kobayashi of the new Stand The Lock. However, when Josuke exposes his scam, Tamami flees. Tamami then draws in Koichi's mother and sister, and provokes the metamorphosis of Koichi's Stand into Echoes ACT1 which can implant sounds into objects and people. When Koichi manages to lift his mother's guilt, Tamami surrenders to Koichi.

Chapters

 * 019 (284). Koichi Hirose (Echoes) (1)
 * 020 (285). Koichi Hirose (Echoes) (2)
 * 021 (286). Koichi Hirose (Echoes) (3)
 * 022 (287). Koichi Hirose (Echoes) (4)
 * 023 (288). Koichi Hirose (Echoes) (5)

Volumes

 * 03 (31). Koichi Hirose (Echoes)