Koichi Hirose/fr

"Pourquoi je devrais trembler à cause de cette ordure de maniaque ? Pourquoi je devrais jouer par force le rôle du geignard dans cette histoire ?"

- Koichi Hirose,

Koichi Hirose (広瀬 康一) est un allié majeur dans la quatrième partie de JoJo's Bizarre Adventure, Diamond is Unbreakable. Il apparaît dans la cinquième partie, Vento Aureo, en tant qu'allié mineur. Il assiste Giorno Giovanna contre Black Sabbath.

Koichi is a meek first-year highschooler who finds himself embroiled in the world of Stand users as he befriends Josuke Higashikata. Koichi eventually becomes a Stand User and wields the sound manipulating stand Echoes.

Diamond is Unbreakable
Koichi est un adolescent de petite taille mesurant 157 cm, bien qu'il soit généralement dessiné comme étant beaucoup plus petit. Il porte un uniforme de lycéen japonais sans modification notable. En dehors des cours, Koichi aura tendance à porter des vêtements plus décontractés.

Koichi a des cheveux clairs. Initialement, il les peigne soigneusement en arrière. Lors de sa confrontation avec Tamami, sa coiffure a tendance à gagner des mèches rebelles pointant vers le haut lorsqu'il est en colère. Vers la fin de sa confrontation avec Yukako, il se coupe soudain les cheveux et sa coiffure devient une sorte de flattop court, qui repoussent spontanément en pointes lors de son combat contre Yoshikage Kira. La couleur de ses cheveux varie à travers les médias, les palettes les plus courantes étant blond, bleu ou gris.

Heaven's Door révèle que Koichi est né prématurément, ne pesant alors que 2325 grammes et a été gardé en soins intensifs pendant 7 jours.

Vento Aureo
La veste de Koichi est remplacée par une variante à double boutonnage étant plus longue et descendant aux genoux avec des bracelets métalliques et le chiffre romain pour trois (III) de chaque côté de son col.

Personnalité
"Qu'est-ce que je t'ai dis ? Ne me sous-estime pas."

- Koichi to Giorno Giovanna,

Koichi est un jeune garçon aimable mais timide qui se développe psychologiquement durant Diamond is Unbreakable, devenant alors un garçon plus confiant et déterminé grâce aux nombreux combats contres des manieurs de Stand maléfiques. Sa croissance est mieux représentée par la métamorphose de son Stand, Echoes.

Un des traits constants de Koichi est sa gentillesse et sa politesse générale envers tout étranger et connaissance. Ayant un cœur d'or, Koichi ne cherche généralement pas à nuire à ses adversaires. Il sauve notamment Yukako de la mort même si elle voulait le tuer avant, et combat brièvement Giorno Giovanna sans utiliser la force létale, ce qui l'a sauvé par inadvertance. Cependant, la convivialité de Koichi disparaît dans les rares occasions où il est en colère, et il devient plus abrasif, violent et vulgaire.

Complétant son apparence enfantine, Koichi possède également une personnalité plutôt gaie. Il trouve l'émerveillement dans les choses les plus bénignes et les plus banales (comme son nouveau vélo, un célèbre mangaka vivant en ville, trouver une erreur dans une carte car on peut gagner un prix, ... etc...), et n'a aucun mal à se lier d'amitié avec autrui. Pour cette raison, il cède facilement à la pression de ses interlocuteur et il obéit leurs demandes, comme lorque Tamami Kobayashi l'extorque sans effort, ou quand Rohan le pousse à passer du temps avec lui. Comme tout adolescent ordinaire, Koichi s'intéresse aux distractions plus accessibles. Il est un grand fan du manga "Pink Dark Boy" de Rohan Kishibe et veut bien visiter mais n'exprime aucun intérêt pour les "vieux" pays comme l'Italie.

Une autre des principales vertus de Koichi est son courage. Comme l'a révélé Heaven's Door, Koichi est décrit comme un étant généralement timide et lâche, mais courageux quand il le faut. Cette estimation s'avère vraie car Koichi est très enclin à exprimer son anxiété, sa peur et son désespoir lorsqu'il fait face à divers revers, notamment dans ses combats contre Yukako, Rohanref name="C322"> ou Sheer Heart Attack. Terunosuke déclare que lorsque Koichi a peur, il cligne des yeux deux fois. De plus, Koichi mentionne pendant l'arc Atom Heart Father qu'il souffre de claustrophobie. Pourtant, Koichi continue de braver le danger malgré ses craintes.

Au début, Koichi avait une volonté faible mais l'acquisition d'un Stand et ses combat répétés contre d'autres manieurs de Stand l'ont rendu plus confiant en lui-même et sûr de lui, passant d'un garçon facilement harcelé par ses camarades à un courageux combattant qui peut confronter Yoshikage Kira et le narguer même s'il est sur le point de mourir. Dans Vento Aureo, Koichi est devenu un jeune homme confiant qui, bien que toujours sujet à des accès de panique, pourrait entrer dans un combat de Stand sans hésitation.

Le mélange de sa gentillesse et de son courage fait de Koichi un individu extrêmement sympathique, gagnant l'amitié et le respect de la grande majorité des personnages, y compris Josuke Higashikata, Tamami Kobayashi, Toshikazu Hazamada, Rohan Kishibe, Yukako Yamagishi, Aya Tsuji et Jotaro Kujo.

Koichi est un individu relativement perspicace, capable de prendre des décisions tactiques rapides et décisifs au combat, parfois au prix d'être trop imprudent. Pour la plupart, Koichi essaie d'analyser sa situation avant d'agir, notamment en raison de la faiblesse de son Stand au début de la série et des grandes limitations de ses pouvoirs, mais manque parfois une conséquence critique de ses actions.

Après un début difficile dans sa relation avec Yukako, en raison de son enlèvement Koichi, il est finalement tombé amoureux de la personnalité ferme et impitoyable de Yukako. Son amour était tel qu'il était prêt à être aveuglé pour toujours au cas où Yukako deviendrait laide, afin qu'elle soit moins malhereuse.

Pouvoirs et compéténces
Le Stand de Koichi, Echoes, commence avec ACT1 uniquement. Cependant, Echoes évolue à travers l'histoire de Diamond is Unbreakable, donnant à Koichi de nouvelles capacités à utiliser au combat. Au moment où Yoshikage Kira est vaincu et tué, Echoes a gagné deux autres formes nommées ACT2 et ACT3. Koichi est en mesure de faire appel à son gré aux ACT précédents d'Echoes et d'utiliser leurs pouvoirs uniques.

ACT1 lui permet d'écrire sur n'importe quelle surface, provoquant la répétition continue des mots ou des onomatopées à différents volumes.

ACT2 lui permet d'écrire un effet sonore sur n'importe quelle surface. Si le mot est touché, un effet spécial lié à l'effet sonore est activé.

ACT3, un Stand humanoïde, a une plus grande puissance physiquement parlant et a la capacité d'"immobiliser" les cibles en multipliant leurs poids à un niveau impossible à soulever.

Mastery
Thanks to Echoes' three forms, Koichi is presented with a wide array of options. For direct combat, Koichi favors using his latest ACT, almost exclusively using Echoes ACT3 when he unlocks it despite ACT2's potential for versatility. With Echoes ACT3, Koichi makes ample use of his weighting power to immobilize enemies but its restricted effects do not lend themselves to the imagination.

Koichi also regularly uses ACT1 as a scout, using its great range of 50 meters to watch his surroundings.

Alliés



 * Josuke Higashikata: One of Koichi's main best friends, the two quickly got along the first moment they met. Koichi admires Josuke and looks up to him while considering him a kind strong person. In turn, Josuke also relies on Koichi during battles and is impressed by his bravery. Josuke is willing to help him whenever he can, such as when Yukako goes after Koichi.
 * Okuyasu Nijimura: The two met on bad terms as Okuyasu slammed some doors between Koichi's neck nearly choking him. However, they moved on from that and became friends. While Koichi and Okuyasu do not have much interaction, they've shown to care for each other's well-being. Okuyasu was concerned when Koichi was kidnapped by Yukako and during the Red Hot Chili Pepper arc, Koichi was sympathetic and comforting to Okuyasu's plight and desire for vengeance against Red Hot Chili Pepper. Nonetheless, Okuyasu is mildly jealous of Koichi's relationship with Yukako, as Okuyasu himself hasn't had a girlfriend.
 * Jotaro Kujo: Koichi looks up to Jotaro as a strong ally, although he is put off by Jotaro's aloof temperament. Their cooperation during the Sheer Heart Attack story arc had Jotaro act as a mentor figure to Koichi, who came to really respect Jotaro's prowess in battle. In addition, Jotaro also grows to see Koichi as a good friend and a reliable person, enough so that he chose him to go to Italy and investigate Giorno Giovanna.


 * Rohan Kishibe: Koichi first admired Rohan as a talented mangaka, but his view changed quickly upon their first meeting when he and Toshikazu Hazamada went to visit Rohan. While Rohan liked Koichi and grew to see Koichi as his first (and possibly only) true friend, he was still abrasive and pushy, notably pressuring him to accompany him on two occasions, and Koichi tolerated less and less the worst sides of Rohan's arrogance as he gained confidence and he was overall a positive influence on Rohan's attitude. At the end of Diamond is Unbreakable, one reproachful look from Koichi was enough for Rohan to yield and confess an attachment to Reimi Sugimoto.
 * Yukako Yamagishi: When Yukako first confessed her feelings to him, Koichi was happy but quickly lost interest upon learning of her obsessive personality, made worse when she kidnapped him. He managed to defeat her and remained somewhat frightened of her. However, during the Cinderella arc, Koichi sought to reconcile with her and grew attracted to her forceful and aggressive personality, ultimately the two became a couple. Koichi's affection for Yukako was such that he was willing to blind himself if Yukako ended up being ugly due to Cinderella's power in order to ease her pain.


 * Reimi Sugimoto: The two met when he and Rohan stumbled upon the haunted alleyway she resided in. While initially scared upon hearing she was a ghost, he quickly sympathized with her after hearing her tragic story and promised to find her killer so she may rest in peace. He later bids her farewell when she ascends to heaven and was rather saddened with her parting. He also gave Rohan a reproachful look so he would admit he would miss Reimi too.
 * Tamami Kobayashi: Initially Tamami tried to scam Koichi with his stand, but Josuke and Okuyasu intervened. When Tamami tried to involve Koichi's family, Koichi got so angered he awakened his Stand and beat Tamami. Since then, Tamami has become afraid of Koichi but also genuinely respects him. Their relationship has been described as a one-sided boss-subordinate relationship.
 * Toshikazu Hazamada: Koichi and Josuke fought him and quickly defeated him. Afterward, Hazamada somewhat bonded with Koichi over their mutual interest in Pink Dark Boy and the two went to visit Rohan's place. Their relationship has been described as a one-sided friendship.


 * Aya Tsuji: While the two had little interaction, Aya grew to respect Koichi's determination when she saw his willingness to blind himself if he couldn't help Yukako through the trial Aya put her through. He was also saddened when Kira killed her.
 * Family: While not much interaction was shown with his family (which consists of his parents and older sister), when Tamami tried to use them to get revenge on Koichi, he became enraged enough to beat Tamami by awakening his Echoes ACT1 Stand, demonstrating that he cared for them. His relationship with his father is never shown but is presumed to be good.
 * Giorno Giovanna: Koichi was sent to investigate Giorno by Jotaro, and Giorno did his best to avoid Koichi even turning his suitcase into a frog. However, over time Koichi grew to see Giorno's noble soul. He reports to Jotaro after the trip, but he convinces Jotaro that Giorno is a good person.

The Book: JoJo's Bizarre Adventure 4th Another Day

 * Chiho Futaba: Koichi firstly meets Chiho in Thorn Palour while studying with Yukako, and gets to know her through Yukako's introduction. He runs into Chiho again about 5 months after Takuma Hasumi's case. Surprised to find out that Chiho is pregnant with Takuma's baby, Koichi decides to keep this encounter as a secret and sees Chiho leaving Morioh, sending his wishes to her.
 * Takuma Hasumi: After discovering Trinita and Hanae Orikasa's corpse, Koichi and Rohan start investigating to find the culprit, who is ensured to be a Stand user. Later, Koichi runs into Takuma at the hallway in his high school, along with Josuke and Okuyasu, without realizing Takuma is the culprit and has already sensed their actions.

Ennemis

 * Kira confronts Koichi.png[[Yoshikage Kira]]: Koichi, after learning of Kira's crimes, came to deeply loathe him to the point he would attack him on sight. Kira, on the other hand, came to somewhat praise Koichi's ability for being able to track him and then indirectly humiliate him in public, which he made sure to pay back with a beating. When Koichi humiliated Kira a second time, demonstrating how careless the serial-killer could be, Kira was enraged and came to detest Koichi, being happy at the prospect of Koichi dying.
 * Terunosuke Miyamoto: While there is little interaction between the two, Koichi hated Terunosuke for taking him hostage and trying to kill him and Josuke.

Détails

 * Koichi's name and basic appearance appear to have been taken from the main character and a narrator of one of Araki's earlier works, Cool Shock B.T. GIKoichi.png
 * Koichi's surname, "Hirose," is derived from the Hirose River (広瀬川), located within the city of, Araki's birthplace.
 * Although it's never been explained why, Koichi's enemies tend to shrink in size after he beats them. This is not shown in the anime for consistency; Koichi's enemies are already short when they're introduced.
 * Koichi's stand is named after a track by Pink Floyd, just like Josuke's stand. This is a distinction he shares with his alternate-universe parallel Yasuho Hirose, who shares Prince references as stand names with her respective universe's Josuke.

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