
Kōichi Shindō is a warm, ever-grinning supporting player in Horimiya, best known as Izumi Miyamura's oldest friend and the devoted boyfriend of Chika Ichijō. A student at Yasaka High School, he stays close to Izumi long after the two split off for different schools.
Lanky and tall, Kōichi carries a head of medium-length hair that spikes outward at the tips and parts toward the right, crowned by a stubborn cowlick jutting straight up that Izumi Miyamura privately reads as a mark of foolishness. The strands run a warm orange, and beneath them sit bright lime-green eyes that suit his easy, grinning manner. As a junior high student he wore the hair a little shorter and rougher before it settled into this look.
Sunny and quick to smile, Kōichi was the well-liked kid in middle school who, unlike his peers, reached out to a friendless Izumi instead of shunning him. That kindness came paired with a scatterbrained side early on, and he fumbled Miyamura's name over and over before finally landing it. When Makio Tanihara warned him to steer clear of Izumi over the piercings and gloom, Kōichi pushed back, arguing that the very mood Tanihara scorned was a product of how Tanihara's own crowd had treated the boy, and even later he keeps nudging Tanihara to simply let Miyamura be.
To Kōichi, Izumi is a genuinely fascinating person worth standing beside, and Miyamura in turn credits him as one of the people who taught him he could be himself out in the open. A more earnest streak shows around Chika Ichijō, whose parents' contempt truly wounds him; though he once doubted he deserved her, Miyamura's encouragement hardened his resolve to never quit and to ask her to wait a year for him. Among his friends he is all mischief, roughhousing with Miyamura, even planting a foot on his head, and needling Hori about exactly what she sees in her boyfriend until she squirms.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
Kōichi shared a junior high with both Izumi Miyamura and Makio Tanihara before the group scattered across high schools, Izumi heading to Katagiri while Kōichi enrolled at Yasaka on his parents' wish that he aim higher. School has never gone smoothly for him; he has been held back in his final year more than once and admits around Christmas that another repeat looks likely, a record that stokes the disapproval of Chika's family.
His bond with Chika began the instant he confessed and she answered with a plain yes, and it has weathered her parents' scorn ever since, with Kōichi reckoning he pours some sixty percent of his time into her. His tie to Izumi is stranger and no less close, a brotherly friendship of shoves, blunt teasing, and shared secrets in which Kōichi knows Miyamura down to his measurements, arguably better than Hori does. With Tanihara he rebuilt an old friendship after a rift, easing into the role of the trio's exasperated straight man.
Kōichi Shindō is a warm, ever-grinning supporting character in Horimiya, best known as Izumi Miyamura's oldest friend and a student at Yasaka High School.
Kōichi Shindō's girlfriend is Chika Ichijō, a relationship that began the moment he confessed to her and she said yes, and one that has endured despite her parents' disapproval.
Kōichi Shindō shared a junior high school with Izumi Miyamura and stayed close to him even after the two split off to different high schools, forming a brotherly friendship built on teasing and shared secrets.
Kōichi Shindō is lanky and tall with medium length orange hair that spikes outward and a stubborn cowlick, along with bright lime green eyes.
No, school has never gone smoothly for Kōichi Shindō. He has been held back in his final year more than once, which fuels the disapproval of his girlfriend Chika's family.
Looking for more on Kōichi Shindō? The Horimiya Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Horimiya anime series, manga, and official materials. Horimiya was created by HERO and Daisuke Hagiwara, published by Square Enix, and animated by CloverWorks. All rights to Horimiya and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
Rights holders
All rights belong to their respective owners.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
Official resources:
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.