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Seikin

Seikin

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2026-07-30

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At a glance
Category
YouTuber
Debut
2012-00-00
Country
Japan
Official
yahoo-jp-newsbing-zh-cnbing-zh-twbing-newsnaver-news

Who is this?

Seiya Kaihatsu (Japanese: 開發 聖也, Hepburn: Kaihatsu Seiya; born July 30, 1987) professionally known as Seikin (Japanese: セイキン), is a Japanese YouTuber and singer-songwriter. His younger brother is YouTuber Hikakin, who is also a member of the Japanese music group Hikakin & Seikin.

Career

  1. 1987
    Born

Trivia

  • •Place of birth: Myōkō
  • •Citizenship: Japan
  • •Known as: YouTuber, musician

What happened recently

bing-news✓ Trusted
1/13/2026

Death Forest: Seikin

Source
News✓ Trusted
1/3/2025

HIKAKIN & SEIKIN team up with Luffy for 'One Piece' opening theme song

Source
News✓ Trusted
1/1/2025

HIKAKIN & SEIKIN to Perform New 'ONE PIECE' Fish

Source
News✓ Trusted
5/29/2020

HIKAKIN & SEIKIN Posts "We Are!" MV for One Piece Theme Song Official Cover Album

Source

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