Koichi Hirose, a character in JoJo's Bizarre Adventure, enters the Stand users' world when Keicho Nijimura shoots him with the Bow and Arrow, leading to the development of his Stand, Echoes. He befriends Josuke Higashikata and they confront evil Stand users.

2025年2月27日 · Koichi Hirose (広瀬 康一, Hirose Kōichi) is a primary ally featured in the fourth part of the JoJo's Bizarre Adventure series, Diamond is Unbreakable. He appears briefly as a tertiary ally in the fifth part, Vento Aureo, assisting Giorno Giovanna in the fight against Polpo's Stand, Black Sabbath.

2025年3月26日 · Koichi is a first-year student in class 1-B of Budogaoka High School. On the first day of school, he bumps into Jotaro Kujo who manages to catch him as well as all his scattered item immediately (Star Platinum is responsible for it), which surprises him. Jotaro asks him about a certain "Higashikata" and if he knows how to reach their address.

Echoes (エコーズ, Ekōzu) is the Stand of Koichi Hirose, featured primarily in Diamond is Unbreakable and appearing briefly in Vento Aureo. Rare among Stands, Echoes takes three distinct forms called "ACTs", which Koichi may call upon alternately.

Koichi Hirose is a major protagonist in the JoJo's Bizarre Adventure franchise. He is one of two deuteragonists (alongside Okuyasu Nijimura) of JoJo's Bizarre Adventure Part IV: Diamond is Unbreakable and a minor protagonist in Thus Spoke Kishibe Rohan and JoJo's Bizarre Adventure Part V: Golden...

2021年6月24日 · Jotaro determines Giorno is not a threat so he told Koichi just to take a vacation in Italy. In the manga Koichi was about to call Jotaro but Giorno explains him the situation and asks him to not make the call, and Koichi muses that he sees the Joestar greatness in him.

Koichi Hirose (広瀬 康一 Hirose Kōichi) is a major character in JoJo's Bizarre Adventure Part IV: Diamond is Unbreakable. He is a high-school freshman that, while involuntarily, gets involved in the bizarre happenings in Morioh with Josuke Higashikata and Jotaro Kujo.

2025年2月13日 · Koichi Hirose (Echoes) (広瀬康一（エコーズ）, Hirose Kōichi (Ekōzu)) is the fourth story arc in Diamond is Unbreakable. It narrates the misadventures of Koichi who encounters the extortioner Tamami Kobayashi and Koichi's development of Echoes.

Koichi Hirose is one of the main characters from Part 4 of JoJo's Bizarre Adventure. Koichi Hirose was a regular student living in the Japanese town of Morioh, after bumping into Jotaro Kujo on his way to school one day he is asked if he knows the whereabouts of Josuke Higashikata after...

2020年10月10日 · Koichi Hirose is one of strongest supporting characters and closest friends of Josuke Higashikata in JoJo's Bizarre Adventure part 4, Diamond Is Unbreakable. His youthful spirit, unassuming personality, and overall kindness proves a stark foil to Okuyasu's blitheness.