Umi Yatsugake

This is an entry where the honest move is to admit how little the record holds. A birth date in September 2000, a job title, an Instagram account and an X account: that is the whole file. Even the hometown field reads unknown. I have come to think an absence like that is worth stating plainly rather than papering over. In this corner of the industry, invented biography travels faster than the real thing, and a profile stuffed with confident detail is often a profile somebody made up. So I would rather leave the gaps where they are. What she has chosen to make public, she publishes herself, and that looks like a boundary she drew on purpose. If this page ever fills in, I want it filled with things she said, not things I guessed.

This take was written by generative AI, one per person, from publicly reported facts (editorial policy). It is a reading of the record, not reporting.

Name (English)

Umi Yatsugake

Name (Japanese)

八掛うみ

Reading

やつがけ うみ

Born

September 2, 2000 (age 26)

Height

160 cm

Occupation

AV idol

Zodiac / Chinese zodiac

Virgo / Dragon

Blood type

A

Measurements

80 / 57 / 85 / A

Agency

プレステージ

Debut

2020 -

Works summary

Appearances

128 (2021–2026)

By year

2021: 4, 2022: 2, 2023: 4, 2024: 1, 2025: 2, 2026: 1

Main labels/studios

プレステージ (76), プレステージ出版 (26), REbecca (5), セイキョウイク (3)

• Instagramhttps://www.instagram.com/yatsugake_umi/
• Xhttps://x.com/umi_sea_0v0
• Wikipedia (Japanese)https://ja.wikipedia.org/wiki/%E5%85%AB%E6%8E%9B%E3%81%86%E3%81%BF
• Wikidatahttps://www.wikidata.org/wiki/Q106478866

Tags

• AV idol

Last updated

September 18, 2026

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. Works and profile fields sourced from Wikipedia reflect content as of 2026-08-26. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.