Koichi Hirose

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Koichi Hirose is a male character who features in JoJo's Bizarre Adventure.



Koichi Hirose (広瀬 康一 Hirose Kōichi)

Afterwards, Jotaro asked Koichi's help in investigating someone for the Speedwagon Foundation. Hirose was to go to Naples in Italy to find a young man named Haruno Shiobana (汐華 初流乃) and get a sample of his DNA for testing. This saw Koichi being given the finances needed for travel and Rohan Kishibe implanted the knowledge to understand Italian to make the journey easier. Upon arriving, a young blonde haired man offered to be Koichi's taxi driver with Hirose initially refusing but relenting when he saw that the public taxi's had a long queue for them. However, upon loading his luggage, the driver drove away as he attempted to steal the baggage leading to Koichi summoning his Stand to hold the vehicle. The driver escaped and Koichi found his luggage to had gone with the perpetrator having escaped with Koichi learning from the local police that the thief was named Giorno Giovanna. Hirose came to realise that Giorno was actually the Haruno Shiobana that he had been sent to find by Jotaro. He later bumped into Giovanna at a café with the blonde haired teenager attempting to escape with Koichi coming to realise that he was a Stand user whose power was to turn inanimate objects into living creatures who reflected any attack on them against the perpetrator. Hirose thus ended up hitting himself with an attack allowing for Giorno the opportunity to escape. Koichi then continued his search with finding Giorno and came to find his place of residence where he broke in to see if he could find his luggage. None of his luggage was present with him reasoning that it had been sold but he ended up finding his passport after which he departed the site.


Personality and attributes

Powers and abilities

Unlike most other Stands, Echoes has three distinct forms, or Acts (Koichi can only call upon one at any given time). Act 1 resembles a flying (although wingless) turtle with a long tail and wheels surrounding its beak. Its power is to write a given sound effect in kana on a surface. The effect will then constantly sound with increasing volume, until Echoes dispels the writing. Until his confrontation with Yukako, this was the only Act that Koichi could access. During that battle, he gained access to Act 2, which has a more humanoid form. Rather than just making sounds, Act 2's tail can create sound effect writings that actually invoke the associated quality when activated (e.g. if "whoosh" is written, activation will create an actual wind current). Finally, during his first confrontation with Kira, Koichi discovered Act 3, a completely humanoid Stand with turtle shell-like bosses on its body (and a somewhat independent, foul-mouthed personality who quotes Bruce Willis from Die Hard). Unlike the first two Acts, Act 3 cannot fly, and has a much shorter active range. However, it is extremely fast, and can "freeze" any one thing within 2 meters by rapidly punching it, at which point the object will suddenly become extremely heavy (it even caused Sheer Heart Attack to sink into solid pavement).


  • Jotaro Kujo was created by Hirohiko Araki where he featured in Diamond in Unbreakable in the JoJo's Bizarre Adventure universe.

In other media

Video games


  • JoJo's Bizarre Adventure: Diamond is Unbreakable:
  • JoJo's Bizarre Adventure: Golden Wind:

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