🇰🇷SEIO
セイオ
SEIO is a unisex, girly brand founded in 2021 in Korea. Rooted in Simplify, Essence, Individuality, and Openness, it offers typography-based epoxy phone cases and daily digital accessories, delivering restrained yet expressive designs that resonate with young women seeking lasting, meaningful style.
![SEIO（セイオ）の「[MADE] linear rhythm case（Smartphone Accessories）」](https://img.sixty-percent.com/_/w800/plain/gs://forty-percent_uploads/image/2026/09/55a677ab-d08e-4280-bdb6-32a3f6eb4734.png)
![SEIO（セイオ）の「[MADE] calm frequency case（Smartphone Accessories）」](https://img.sixty-percent.com/_/w800/plain/gs://forty-percent_uploads/image/2026/09/3a4cf91a-6a1b-4af5-8dd7-7b167dac66ee.png)