Twitter followers 24.2K

▲ +38 / 29d

YouTube subscribers 2.9K

▲ +7 / 29d

Twitch followers 23.5K

▼ -7 / 15d

Twitch follower goal 23,467 / 25,000

New Emote Slot! 1,723 / 3,400

Social Links

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Kou Mariya

AKA AMARIYAMariMariya 💒 コウマリヤ

V4Mirai (former) Graduated Last active 2 days ago on Twitch

About

Kou Mariya is a female English-language VTuber who debuted independently on YouTube in October 2020 and joined V4Mirai's second generation "Petalight" in 2023. She retired in October 2025 due to contract issues with V4Mirai, marking the end of her character as she transitioned to a new identity.

Kou Mariya (コウマリヤ) was a female English-language VTuber. Initially debuting as an independent VTuber in 2020, she joined V4Mirai in 2023 as part of its second generation "Petalight", alongside Mono Monet, Yae Yugiri, and Biscotti. In October 2025, she retired following a failure in contract negotiations with V4Mirai. She initially expressed wishes to return as an independent VTuber, but the creator of Kou Mariya ultimately announced that she will be retiring the character and will instead be continuing as Emiliya Fell.

Bios from their socials (3)

Bio (from YouTube)

Moved to @kou_mariya This is my indie account, but I'm now with V4Mirai !! Making content on that channel instead of here now~!

Bio (from Twitter)

kohu! vampire idol of #petalight 🌸 yt (80k) & twitch partner — producer at @frproductions gen: #V4MPIRE • fanart: #mariyart • ママ: @kujouitiso Work: DM

Bio (from Twitch)

business→ contact@mariya.moe

Character Info

Country United States

Gender Female

Birthday 9 June 1XXX BC

Age 6669 years old

Debut YouTube: 2020/10/03

Height 160 cm (5'3")

Weight ....

Languages English

Zodiac Sign gemini

Community

Streaming Language English

Speaks English

Fan Name KouHai

Genres asmr, free-talk, gaming, singing

Oshi Mark 💒

Hashtags

Fan Art #mariyart

Fan Art (NSFW) #mariyabai

Twitch Schedule

Recent Broadcasts

🔴 【LIVE ASMR】Evening with a Vampire — soft speaking, kind words, head scratches & other tingle triggers

Mon, Aug 3, 4:46 AM UTC

1h3m52s 1.6K views

🔴 【LIVE ASMR】Evening with a Vampire — soft speaking, kind words, head scratches & other tingle triggers

Mon, Jul 13, 4:10 AM UTC

1h30m47s 3.7K views

69 IQ plays !! with Inanna, Hazumi, Jelly, Pandora, Raki, REM, Spelly, Yuki

Wed, Jul 8, 9:05 PM UTC

2h16m40s 1.3K views

Recent Activity

Recent Tweets

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Gallery

HoloList Portrait

Character Sheet

Lore

A vampire who accidentally overslept for a few too many thousands of years, Kou Mariya navigates an unknown colorful world full of magic and mystery every single evening. Otaku to her core, Mariya dreams of creating an idol stage of her very own, one that beckons to fans from every world and realm with her songs!

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.