Japan
Houshou Marine (宝鐘マリン) is a VTuber under Cover Corporation's hololive production, debuting in August 2019 as part of the third generation cohort known as hololive Fantasy.
Total Followers +0.5%
4.4M
Across YouTube
Primary Platform
YouTube
4.4M followers · 100% of audience
Engagement
5.7%
vs. 1.5% category median
Sponsorship Tier
Macro
Est. — / IG post
| Platform | Followers | 30d Growth | Engagement | Posts / wk | Last upload |
|---|---|---|---|---|---|
| YouTube | 4,390,000 | +20K | 5.7% | 1.9 | 2 days ago |
| Window | YouTube | Combined | ||
|---|---|---|---|---|
| Last 7 days | +10K +0.2% | +0 +0.0% | +0 +0.0% | +10K |
| Last 30 days | +20K +0.5% | +0 +0.0% | +0 +0.0% | +20K |
| Last 90 days | +40K +0.9% | +0 +0.0% | +0 +0.0% | +40K |
| Last 365 days | +40K +0.9% | +0 +0.0% | +0 +0.0% | +40K |
Daily follower snapshots from CreatorDB's longitudinal index.
Houshou Marine (宝鐘マリン) is a VTuber under Cover Corporation's hololive production, debuting in August 2019 as part of the third generation cohort known as hololive Fantasy. Her character is a self-described pirate captain whose stated ambition — saving enough to buy an actual pirate ship — runs as a sustained joke through her channel branding, community hashtags, and stream identity. She is among hololive's more musically active members, regularly releasing vocal covers and original songs; the animated music video "Chatter Chatter," a collaboration with Hoshimachi Suisei, illustrates the production scale hololive now applies to original music projects.
Her content spans gaming, zatsudan (casual chat streams), karaoke sessions, and ensemble collabs with other hololive talents — a variety format that sustains engagement well above category norms for a channel of her size. Her audience skews slightly female and covers a notably wide age range, suggesting appeal grounded in personality, comedy, and music rather than competitive gameplay. With a near-exclusively Japan-based following, she operates primarily as a domestic entertainment act, though hololive's global distribution infrastructure circulates her music internationally. As the VTuber sector consolidates around established agencies, Marine's combination of original music output, a durable comedic persona, and strong community cohesion position her as one of hololive's more stable long-term personalities.
HoushouMarine reaches an audience concentrated in Japan primarily through YouTube, and is best activated via long-form YouTube integrations. As an entertainment creator they map naturally to brands targeting that space. With no brand deals logged yet, they read as an available, category-aligned partner for advertisers building early presence in the space. Engagement on YouTube runs around 5.7%, which points to an audience better suited to category-relevant, mid-funnel campaigns than to pure-reach buys. Their YouTube-first format lends itself to integrations that sit inside the creator's usual content rather than running as standalone ads. Because the audience follows entertainment content rather than arriving through untargeted reach, sponsorships that match the channel's subject matter tend to convert more efficiently than broad placements. A consistent, on-topic posting focus gives sponsors a predictable, brand-safe environment, lowering placement risk compared with broad, general-interest channels. Campaigns here are best measured on qualified engagement and consideration within the niche rather than on raw impression volume. For Japan-focused brands in entertainment and related categories, HoushouMarine offers a defined, creative-fit audience rather than broad, low-intent impressions.
Benchmark estimates for a creator at HoushouMarine's tier (Macro, 4.4M combined followers, Japan). Pulled from CreatorDB's category benchmarks.
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Houshou Marine's VTuber character is a pirate captain, so fans and fellow hololive members call her 船長 (Senchou), meaning "Captain." Her entire persona revolves around a pirate theme — she describes her dream as finding treasure and buying a pirate ship, and jokes that for now she is just a "pirate cosplay woman stuck on land."
Houshou Marine is a member of hololive 3rd generation, also known as hololive Fantasy (ホロライブファンタジー), which debuted in 2019. The generation is widely regarded as one of hololive's strongest and includes other major names like Usada Pekora and Shirogane Noel.
"Chatter Chatter" is an original song released as an animated music video collaboration between Hoshimachi Suisei and Houshou Marine, two of hololive's most recognized vocal performers. The MV features original character animation and stands as one of Marine's flagship creative projects beyond her regular streams.
ノエマリ (NoeMari) is the fan name for the close friendship between Shirogane Noel and Houshou Marine, both members of hololive 3rd generation. The two are known for candid, warm collab streams where they share personal stories — including memories from tough childhoods — which has made the pairing especially beloved.
Marine has spoken openly about her background as a doujin creator and self-described otaku before she joined hololive. That creative history feeds directly into her current work — she still posts her own original illustrations on pixiv, which is unusual among VTubers at her level.
Yes, Marine actively posts original artwork on pixiv, with a link to her account included in her YouTube bio. Her art background predates her VTuber career, and fans who want to see her illustrations separate from her streaming content follow her there directly.
宝鐘海賊団 (Houshou Kaizoku-dan) translates to "Houshou Pirate Crew," and it is the collective name Marine uses for her fanbase. Consistent with her pirate theme, new subscribers are welcomed into the crew, and she rallies fans using hashtags like #宝鐘の一味 and #宝鐘マリン生誕祭 for milestone events.
幻想郷ホロイズム (Gensokyo Holoism) is a fan-made RPG that reimagines hololive members within the Touhou Project universe, and Houshou Marine is among the talents featured. Streams connected to the game have appeared in her content, reflecting her willingness to engage with major fan-created projects.
Marine has taken several notable hiatuses over the course of her career due to physical health concerns, a documented challenge for high-output VTubers who stream for long hours. Each return has been met with strong community support, and she has been candid with fans about the need to manage her health.
Marine's signature original song is "Ahoy!! 我ら宝鐘海賊団☆" (Ahoy!! We Are Houshou Pirates ☆), a high-energy pirate anthem that perfectly captures her character. Beyond it, she has released multiple originals and covers, building a reputation as one of the strongest vocalists in the hololive roster.
Stats (followers, engagement, audience demographics, growth) are pulled live from the CreatorDB API covering YouTube, Instagram and TikTok. Bio and FAQ content is AI-assisted; news items are sourced from cited public press at generation time. Read the full methodology →
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