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How does a kid who spent his childhood listening to the muffled thud of Luna Sea through a bedroom wall end up becoming the sonic bedrock for the most technical melodic speed metal band in Japan?
If you’ve ever watched an Unlucky Morpheus (or "Ankimo") live show, your eyes are likely glued to the virtuoso violin work of Jill or the blistering guitar duels between Shiren and Jinya. But if you close your eyes and feel the floor shake, you’re experiencing the work of Hiroyuki Ogawa. He is the "Low-End Engine," the man responsible for keeping a band that plays at 200+ BPM from flying off the rails.
Yet, the strange truth is that Ogawa didn't even start as a metalhead. In fact, he was a jazz-loving session player who had never touched a double-bass pedal rhythm before Shiren called him up.
The Boy Who Listened Through the Walls
Most metal bassists cite Iron Maiden’s Steve Harris or Cliff Burton as their "Aha!" moment. For Hiroyuki Ogawa, the inspiration was far more domestic. Growing up, his brother was an obsessed fan of the Visual Kei legends Luna Sea. Because the high frequencies of the guitars and vocals were filtered out by the walls of their house, all Ogawa could hear from the next room was the deep, rhythmic pulse of the bass.
To him, that "muffled" sound was the coolest thing in the world. He picked up the electric bass to replicate those grooves, eventually diving deep into the worlds of jazz, funk, and fusion. By the time he was a professional, he was a versatile session player and instructor, capable of handling complex time signatures and soulful melodies with ease.
Then came the "Unlucky" invitation. When Shiren: the mastermind behind Unlucky Morpheus: needed a bassist who could match his own inhuman speed, he didn't look for a metal purist. He looked for a technician.
The Technical Shift: From Jazz to "Gate of Hell"
Transitioning from jazz clubs to the pyro-filled stages of J-Metal wasn't just a change in volume; it was a total mechanical overhaul. In his interview with UniJolt, Ogawa admitted that playing with Ankimo was essentially his first time playing metal.
To keep up with the relentless "Ankimo speed," Ogawa relies on a very specific rig that has become iconic among gear-heads in the Japanese metal scene:
- The Bass: An ESP E-II 5-string. It’s a beast of an instrument with a "metal" aesthetic that belies the precision playing Ogawa brings to it. The 5th string is essential for those earth-shattering low B notes that define modern power metal.
- The Power: An Aguilar Tone Hammer 500. Ogawa prizes this amp for its portability and its ability to deliver a consistent, punchy tone regardless of the venue’s acoustics.
You can hear the fruits of this setup on the brand-new album, Gate of Hell, which dropped just two days ago on June 3, 2026. On tracks like the title opener, Ogawa’s lines aren't just following the guitars; they are weaving through them, providing a percussive attack that makes the drums sound twice as heavy.
Why He’s the Secret Weapon of Japanese Metal
What makes Ogawa special isn't just that he can play fast. It’s how he plays fast. Because of his jazz background, he brings a "swing" and a sense of groove to melodic speed metal that is often missing from the genre. While many metal bassists are content to play root notes, Ogawa treats the bass as a lead instrument that just happens to live in the sub-frequencies.
In the sub-unit Quadratum From Unlucky Morpheus, he gets to flex these muscles even harder, tackling instrumental covers that require extreme finger dexterity and melodic phrasing.
The Insider Recommendation: The "Vlog" Perspective
If you want to truly understand the man behind the bass, don't just watch the official music videos. Head over to his personal YouTube channel, HIROYUKI OGAWA. His tour Vlogs give you a rare, "insider" look at the life of a professional Japanese metal musician. You'll see the meticulous preparation, the camaraderie between the members, and the sheer exhaustion that comes from playing some of the most difficult music on the planet night after night.
Pro-Tip: Check out the Gate of Hell album trailer on the Unlucky Morpheus Official YouTube to hear his latest work in high definition!
Final Thoughts: The Anchor of Chaos
Unlucky Morpheus is a band of "final bosses": every member is a specialist at the top of their game. But Hiroyuki Ogawa is the one holding the map. Without his rock-solid timing and jazz-infused precision, the symphonic chaos of Ankimo would lose its impact. He is the proof that sometimes, the best way to conquer a genre is to come at it from the outside.
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Stay tuned to I Love Japanese Music for more deep dives into the architects of the J-Metal scene!