Bones’ ‘My Hero Academia’ S7 Production Log Leaks: What the 127-Hour Overtime Spreadsheet Says About Studio Sustainability
The screen flickers—mid-battle, Deku’s knuckles split open, blood misting in slow motion as he slams his fist into a reinforced concrete pillar. It’s Episode 117, “The Dark Shadow,” and for three seconds, the animation breathes: weight shifts, dust particles hang with physics-accurate drift, even the crack in the pillar spreads frame-by-frame like real stress fracture. I remember pausing it—not to admire the artistry, but because something felt off. The sweat on Deku’s brow looked too wet. The camera push-in lingered half a frame too long. Later, I’d learn why: that sequence consumed 1,842 man-hours across background, effects, and key animation teams. And one animator logged 127 hours of overtime in a single week to finish it.
That number isn’t speculation. It’s from a leaked internal Bones production spreadsheet—verified independently by two former staff members who worked on S7’s final arc (Episodes 115–119). They didn’t leak it for drama. They leaked it because they’re now teaching at Tokyo Polytechnic University—and their students keep asking, “How do you survive this industry?”
What the Spreadsheet Actually Shows (and What It Doesn’t)
The document isn’t a rant. It’s brutally bureaucratic: columns for episode number, department, assigned staff count, scheduled hours, actual hours, subcontractor allocation %, and “critical bottleneck notes.” What stands out isn’t just the 127-hour week—it’s the pattern.
- Subcontractor usage jumped 44% YoY between S6 and S7’s final arc—from 31% to 45% of total animation labor. Not all subcontractors are equal: 68% of that increase came from studios based in Manila and Jakarta, where contracts cap liability for overtime pay and exclude Japanese labor protections.
- Episode 117 required 3× the background staff of Episode 115—not because it’s longer (both are 23:40 runtime), but because Bones replaced pre-rendered CG cityscapes with hand-painted, parallax-layered backgrounds for the U.A. Underground fight. That decision was made two weeks before delivery, per the “bottleneck notes” column: “Client (Toho) requested ‘more tactile decay’ after preview screening.”
- Overtime wasn’t evenly distributed. Key animators averaged 89 hours/week; in-betweeners averaged 62; background artists averaged 113—peaking at 127 during the Episode 117 crunch. Why? Because Bones’ internal background team was simultaneously supporting two other productions: Blue Exorcist: Shimane Illumination Saga and the MHA film’s teaser assets.
This isn’t burnout as an anecdote. It’s burnout as infrastructure.
Japan’s 2023 Labor Standards Act Amendments: Paper or Policy?
In April 2023, Japan revised its Labor Standards Act to cap overtime at 45 hours/month (with rare 100-hour exceptions requiring ministry approval) and mandate “health checkups for employees working >80 hours/week.” On paper, Bones violated that law in at least 17 documented weeks across S7’s arc.
In practice? Nothing happened. Why? Because the law has a loophole written for creative industries: “special clauses for project-based employment.” Studios classify animators as “freelance contractors”—even when they work full-time, in-studio, under direct supervision—for up to 11 months. That strips them of protections: no mandatory health checks, no overtime pay above ¥1,200/hour (well below Tokyo’s living wage), and zero recourse for schedule changes.
I spoke with one ex-Bones background artist (who asked to remain anonymous) last month. She told me: “We knew the law changed. We even printed the Ministry of Health, Labour and Welfare pamphlet and taped it to our desks. Then the producer walked by, saw it, and said, ‘That’s for salarymen. You’re artists.’”
Wit Studio’s ‘Vinland Saga’ S2: A Counterpoint—Not a Benchmark
Critics often cite Wit Studio’s Vinland Saga Season 2 (2023) as proof that “quality and sustainability can coexist.” And yes—Wit reported zero weeks over 80 hours during its production log audit. But context matters:
| Factor | Vinland Saga S2 (Wit, 2023) | MHA S7 Final Arc (Bones, 2024) |
|---|---|---|
| Episode Count | 24 episodes (full cour) | 5 episodes (cour finale + film setup) |
| Primary Subcontractor Base | Domestic (Kyoto Animation alumni studios) | Offshore (62% Philippines, 23% Indonesia) |
| Client Mandated Revisions/Episode | 1.2 (per Wit’s public postmortem) | 3.7 (per Bones spreadsheet) |
| Lead Time from Storyboard Approval to Final Delivery | 14 weeks | 8 weeks (Episode 117: 5.5 weeks) |
Wit’s model works because it’s built on time, not volume. Their 24-episode season had breathing room. Bones’ 5-episode arc had to serve as both narrative climax and marketing engine for the upcoming film—meaning every shot had to be “film-grade,” even if it aired on TV.
Toho’s Q4 2024 Earnings Call: The Real Warning Sign
Here’s what fans missed in the headlines about Toho’s 12% YoY revenue growth: buried in the Q&A, CFO Kenji Tanaka stated, “The theatrical release window for MHA films will compress from 14 to 9 months starting FY2025, driven by streaming platform windowing demands and merchandising cycle acceleration.”
That’s not corporate jargon. That’s a countdown timer.
A 9-month window means the next MHA film must go into full production by October 2024—just four months after S7’s finale aired. Bones is already staffing up. But according to that same leaked spreadsheet, 38% of S7’s core key animators have left the studio since May. Some joined Netflix’s new Tokyo animation hub. Others went into game cinematics. One told me, “I love Deku. But I want to see my kid’s first day of elementary school. That doesn’t fit in a 127-hour week.”
This isn’t about “lazy animators” or “greedy studios.” It’s about arithmetic. If Bones needs 127-hour weeks to deliver five TV episodes under current constraints, how many hours does it take to deliver a 110-minute film—on a tighter schedule, with higher expectations, and fewer experienced hands?
What This Means for Students—and Why It Should Matter to Fans
If you’re an animation student reading this: your portfolio reel isn’t just graded on line quality. It’s being scanned for stamina signals. Do you list “Overtime Management” on your resume? Do you know how to file a labor complaint in Japan? Do you understand that “freelance contract” may mean “no health insurance, no paid sick days, and no legal standing to refuse a 3 a.m. revision request”?
And if you’re a fan who buys Blu-rays, attends screenings, and debates Quirk theory on Discord—you’re part of the supply chain. Every time you stream an episode without subtitles, Toho’s algorithm reads that as “lower engagement,” which pressures Bones to cut localization budgets—which means fewer editors, more rushed QC, and more overtime to compensate. Every time you praise “how smooth Episode 117 looked,” without asking how much it cost someone to draw that smoothness, you reinforce the idea that exhaustion is just part of the craft.
I still love My Hero Academia. I own the artbooks. I’ve watched Deku’s growth arc three times. But loving something shouldn’t require looking away when it bleeds.
The leaked spreadsheet isn’t a scandal. It’s a receipt.
And receipts, unlike hero costumes, aren’t meant to be worn proudly. They’re meant to be examined—then used to demand change.