BH チャンネル (@hiro-hirai), run from Japan by Hiro Hirai, a researcher with about 30 years of overseas study, publishes long Japanese-language talks and radio recordings on Western esoteric and early-modern intellectual history. It has about 4,480 subscribers and a median of 319 views per video, with roughly 14 uploads in 90 days. Sponsored integrations are estimated at $150 to $250 per video.
Reach a dedicated Japanese audience of book readers interested in esoteric and early-modern history
- Median of 319 views and 2.6% engagement across the last 30 videos
- Long-form live talks average about 50 minutes, with comments and book-sales links in descriptions
- Estimated $150 to $250 per video, roughly $0.50 to $0.80 CPM on median views, versus $10 to $30 CPM for paid ads
Brand fit report
Content
- Formats
- live stream interviews, audio radio recordings, short clips and Shorts
- Tone
- scholarly, conversational
- Language
- Japanese
- On camera
- No, voiceover and b-roll
- Production
- Phone, natural light
- Typical length
- 50 to 70 minutes for talks, under 60 seconds for Shorts
Audience
Commercial
- Brands seen
- None yet
- Categories promoted
- books
- Affiliate links
- Yes
Video descriptions link to Amazon Japan book listings, such as 'ルネサンス・バロックのブックガイド' and 'ツィムツム：ヘブライ的瞑想入門', and the channel invites sponsors but none are disclosed in the last 30 videos.
Suitability GARM Brand Safety Floor + Suitability
Family friendly
Content is academic discussion of history, astrology, and magic with no flagged material in the last 30 videos.
We classify content, never people. No age, gender, ethnicity, religion or political views are inferred about the creator. Audience figures are estimates unless marked verified. Creators can correct anything on their profile.
Platforms
Benchmark score: 24 / 100
Public rule, same for everyone. How it works.
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学術ウェブサイト『ヘルメスの図書館』bibliotheca hermetica（略称BH）から生まれたチャンネルです。海外研究生活30年。「知の劇場」を目指します！ 文学系チャンネル『スケザネ図書館』のスケザネさんから、「知の最先端が咲き乱れる、デジタル空間の饗宴」という素敵なキャッチコピーをいただきました。学魔・高山宏氏も、「ファンとしてBHチャンネルをチェックしている」らしいです。各動画に「スパー・サンクス」ボタン（動画右下の3個点内）を実装しましたので、動画が気に入りましたら、ご支援をよろしくお願いいたします！ 【お願い】 ・対談動画のお相手を広く募集しております。自薦他薦を問いません。他チャンネルとのコラボも喜んでお受けいたします。お気軽にご連絡ください。 ・各種イヴェントや書籍の告知・拡散も、喜んでご協力いたします。スポンサーも随時募集しております。お気軽にご相談ください。 BH の活動については ↓ 以下をご覧ください。チャンネル登録をよろしくお願いします！ ・ BH https://bh001.sakura.ne.jp/ ・ BH @ Facebook https://www.facebook.com/bhermetica ・ BH @ Twitter https://twitter.com/microcosmos001 ・ サポート会員
About BH チャンネル
BH チャンネル is run by Hiro Hirai, according to the channel's website bibliotheca hermetica, which describes his academic work on Renaissance, hermetic, and esoteric traditions after about 30 years of research abroad. The channel posts long Japanese-language live interviews with authors and scholars, radio recordings, and short clips, about 14 uploads in the last 90 days. Viewers are most likely Japanese readers interested in intellectual history and occult studies, though this is an estimate.
The channel has about 4,480 subscribers and a median of 319 views per video. Its book links point to Amazon Japan, and a sponsor request is posted on the channel, but no sponsored videos were found. Estimated integration rate is $150 to $250 per video, about $0.50 to $0.80 CPM on median views, compared with $10 to $30 CPM on paid ads.
This channel suits publishers launching academic or esoteric titles in Japan and event organizers seeking a focused readership.
Written from BH チャンネル's public YouTube profile, platform data and web mentions. Numbers updated 2026-10-19. BH チャンネル can edit or remove this page at any time.
Questions about BH
How much does BH チャンネル charge for a sponsored video?
Based on a median of 319 views and long-form pricing of $20 to $35 per 1,000 views, an estimated integration costs $150 to $250 per video. The rate is an estimate from public metrics and is not a published price. Contact details unlock on Starbooked for $0.80.
What does BH チャンネル post about on YouTube?
The channel posts long Japanese-language talks and radio recordings about hermeticism, alchemy, astrology, Renaissance studies, and book launches. It also posts short clips and invites authors and scholars as guests for live interviews.
How do I contact BH チャンネル for a brand deal?
The channel invites sponsors and collaboration requests in its description. Contact details unlock on Starbooked for $0.80, and boosted creators can be booked through Starbooked.
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