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Tsubame Kou
About
Tsubame Kou (燕こう) was part of PRISM Project’s 5th Generation, joining alongside Amami Ami and Shikami Lana. She streamed in English with a focus on gaming and free-talk until retiring from streaming on 31 March 2024, though she still stays active on social media and in collabs.
Bios from their socials (2)
Bio (from YouTube)
KOUHAYO!! ⚡️🔊 Lightning-Charged Android Mama: https://www.twitter.com/ann_nh Papa: https://www.twitter.com/makotok1
Bio (from Twitter)
not a vtuber, just a dude ￤ BROSUKIS 💛 ￤ 父母: @nilitsu_illust & @makotok1￤ PFP: @non_a_non ￤ Banner: @szainx ￤ Spam: @kouwutsuwubame
Character Info
Community
Hashtags
Tags
Recent Activity
Introduction Video
Gallery
Appearance
She has short black hair with a yellow streak and white leaves on the sides. She has an oversized black and yellow jacket with leaves and speaker pattern and a translucent white shirt over black shorts and a blue sports bra with yellow lightning shape on them.
Background
Kou, together with the rest of PRISM Project's 5th Generation, was revealed on 22 April 2023. On the same day, Kou tweeted her frist tweet on her Twitter account. She debuted on 29 April.
Mascot and fans
- Kou has a bird mascot called A110 (read as "Allo"). He is a blue holographic bird-like creature, whose job is to keep Kou out of trouble.
- Kou initially called her fans Koubros, but changed it to Brosukis.
Trivia
- Miyoshino Shiki said PRISM Project used food code names for some of their members before debut, and Kou's was "Salmon".
- Kou shared her character designer with Kambara Asahi from Parallel Artist Project.
- As of July 2026, Kou is technically still active on her social media, but she is retired from VTuber activities since March 2024. She now displays "not a vtuber" on her Twitter bio.
Lore
An android cast out of her society for developing sentience. What is love?
Contributors
This profile is enriched by VTuber Wiki community editors. Thank you to:
Credits sourced from VTuber Wiki page revision history. Vtubie and Hololist do not expose per-page contributor data, so this list reflects VTWiki editors only.
Frequently mentioned
More VTubers from Japan
Art credits
Designers, illustrators, riggers and modelers credited on the official character.
- IllustratorNilitsu
- Live2D Riggermakotok1
More Info
2023
On 1 November, Kou went on an indefinite hiatus to handle "personal and timely issues," with a hopeful return by March 2024.
Retirement from VTubing
On 2 March, PRISM Project announced its closure at the end of the month with the intention of letting all talents transition into becoming independent VTubers. The next day, Kou, still on hiatus, uploaded a video explaining that she had wanted to return some time in March but had decided to retire entirely due to her personal circumstances and concerns about content creation without managerial support.
On 29 March, Kou released her original song "RE:BORN AGAIN". She would follow this up with her final stream, where she announced that her members-only content would be released to the public following her retirement.
Media
- Kou Tsubame / 燕こう - YouTube channel
- @KouTsubame - Twitter account
- @koutsubame - TikTok account
- u/KouTsubame - Reddit account
Hashtags
- #KouTsubame #燕こう - General * #Koupium - Stream talk * #artsubame - Fan art ** #Koultured - NSFW fan art * #tsubameme - Memes * #Koufee - Food pictures