Kosei 個性 Kosei 個性
Kosei creator merchandise keychain

Tokyo, Japan — クリエイターマーチエージェンシー

Merch that defines your brand.

ブランドを体現するメルチを。

We design, manufacture, ship and sell creator merchandise from Tokyo — for YouTubers, VTubers, streamers and influencers worldwide. Bilingual team. Eco-friendly materials. Fast turnaround.

YouTuber・VTuber・ストリーマー・インフルエンサーのメルチを東京からお届け。

Everything your merch project needs.

メルチプロジェクトに必要なすべて。

From concept to doorstep — we handle every step so you can focus on creating.

Bilingual Creative Team

バイリンガルクリエイティブチーム

Japanese and English speaking designers who live and breathe creator culture — from Tokyo streetwear drops to global collab launches.

Eco-Friendly Materials

エコフレンドリー素材

We source sustainable, certified materials so your merch is as responsible as your brand. Good for your fans, good for the planet.

Fast Turnaround

迅速な納期

From approved design to production-ready in days, not months. We move at creator speed — rush orders available on request.

End-to-End Fulfilment

エンドツーエンドフルフィルメント

Tokyo-based warehouse, real-time inventory management, and direct-to-fan international shipping. We handle it all.

Creator Drop Specialists

クリエイタードロップ専門

Limited-edition drops, collab collections, seasonal launches — we know the formats and the communities that make them sell out.

Online Shop Setup

オンラインショップ開設

We build and manage your merch store from scratch — product listings, payments, and customer service handled so you don't have to.

Trusted by creators across every platform

あらゆるプラットフォームのクリエイターに信頼されています

お問い合わせ

Got a project in mind?

プロジェクトのアイデアがありますか?

Let's build something your fans will love. Our bilingual team in Tokyo is ready to bring your vision to life.

ファンが喜ぶものを一緒に作りましょう。バイリンガルチームがお待ちしています。