Contact information
Contact Us
We're happy to help with any questions about our products, orders, or shipping. Feel free to reach out in any language — we can respond via text translation.
DM us at @nkc_jp
Response Time
We usually respond as soon as possible. In most cases, replies are sent within the same day or the next business day.
Please note that response times may vary depending on inquiry volume or business hours.
Business Hours
Monday–Friday (excluding holidays)
Before You Contact Us
You may find answers to common questions in our store policies:
For Order Inquiries
Please include your order number and relevant details so we can assist you more quickly.