Houshou Marine releases short video with gal-themed character concept
·Houshou Marine published a YouTube Shorts video titled "ギャルになりたかったマリン船長#shorts" featuring her character in a gal-themed concept, with editing by Kaybow and illustrations by march.
Houshou Marine shares weight management approach in YouTube Shorts
·Houshou Marine published a YouTube Shorts video titled "Marinchou's Weight Gain Countermeasures," presenting methods based on real experience that viewers can replicate, with editing by Usoyama Usagi and illustrations by Uminyann.
Houshou Marine comments on beach dance video posted to YouTube Shorts
·Houshou Marine added a comment to a beach dance video she posted on YouTube Shorts, saying "きゃぴ踊ってたらなんか元気になってきた！！！！" The full version is available separately on YouTube.
Houshou Marine posts beach dance video on YouTube Shorts
·Houshou Marine posted a dance video on YouTube Shorts featuring herself in a swimsuit at a beach, with the caption "Behold this sway!!!" The video was produced by Hirao.
Houshou Marine releases collaboration dance video, announces September 30 EP
·Houshou Marine posted a dance video on YouTube Shorts with Suzuka and Miju, members of Atarashii Gakkou no Leaders, a Japanese music group, dancing to a song called "Kiyapi".
·Houshou Marine's new EP "New World Carnival ～Iza Miwaku no Taikai Hara e♡～" will be released on 30 September.
Houshou Marine collaborates with Akira Sake on rum product launch
·Houshou Marine, a VTuber from Hololive, and Akira Sake announced a collaboration rum product called Marinzu Ramu. Pre-orders begin on 18 October at 17:00.
Houshou Marine releases merchandise showcase video with artist collaboration
·Houshou Marine posted a live-action camera video on YouTube Shorts titled "マリン船長の声カスカスなグッズ紹介", showcasing 7th anniversary merchandise available for purchase from 11 August 2026, with a link to the merchandise page.
·Yabuki Kentarou, author of To LOVEru, created a card illustration featuring Houshou Marine that generated significant fan response.
·Houshou Marine's cosplay was featured in a Comiket beauty cosplayer special as "艶やかなマリン船長".
Houshou Marine releases YouTube Shorts video "Kumarin's Slapstick Ghost Experience"
·Houshou Marine posted "Kumarin's Slapstick Ghost Experience" to YouTube Shorts, produced by exsa Corp. with director Hoshino Tetsuya, described as a humorous video with the caption "Kumarin is immortal".
·Houshou Marine will receive a prize figure collaboration with Crossbone Gundam X1 titled "Crossbone Gundam X1 × Houshou Marine [Plush Armor Ver.]" as part of the "hololive IF" Gundam collaboration, to be distributed by the Banpresto brand.
·An RG Gundam plastic model "RG Crossbone X1 [Houshou Marine Ver.]" is also on display as a reference exhibit, with its painted prototype first shown at Tokyo Toy Show.
·Usada Pekora, a VTuber, will receive a merchandise collaboration with Unicorn Gundam titled "Unicorn Gundam × Usada Pekora [Plush Armor Ver.]".
Houshou Marine begins Pawapuro stream for Horo-kou 2026 event
·Houshou Marine streamed Pawapuro 2026 Eikoku Nain 3-nen mode as part of the Horo-kou 2026 project, featuring AHOY High School's first broadcast, in which she drew strong players from Aichi through rerolling.
Houshou Marine releases New World Carnival EP tracklist and merchandise details
·Houshou Marine announced the tracklist and merchandise details for her new EP New World Carnival 〜いざ魅惑の大海原へ♡〜, scheduled for release through Universal Music Japan.