【休肝日って何?】What is liver rest day?
【休肝日って何?】What is liver rest day?
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FREE U.S. SHIPPING · MADE TO ORDER
Estimated U.S. delivery: 5–9 business days. Production usually takes 2–5 business days, followed by approximately 3–4 business days for standard shipping. Estimates may vary.
View shipping details• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Nicaragua, Mexico, Honduras, or the US
Disclaimer: The fabric is slightly sheer and may appear see-through, especially in lighter colors or under certain lighting conditions.
Age restrictions: For adults
EU Warranty: 2 years
In compliance with the General Product Safety Regulation (GPSR), Taiyo Co., Ltd., ORERYU SOUHONKE Division ensures that all consumer products offered are safe and meet EU standards. For product safety inquiries or concerns, please contact us at kataoka@taiyou-sya.com or write to us at 28-11 Iiguradai, Sosa-shi, Chiba 289-2147, Japan.
Size guide
| LENGTH (inches) | WIDTH (inches) | CHEST (inches) | |
| S | 28 | 18 | 34-37 |
| M | 29 | 20 | 38-41 |
| L | 30 | 22 | 42-45 |
| XL | 31 | 24 | 46-49 |
| 2XL | 32 | 26 | 50-53 |
| 3XL | 33 | 28 | 54-57 |
| 4XL | 34 | 30 | 58-61 |
| 5XL | 35 | 31 | 62-65 |
| LENGTH (cm) | WIDTH (cm) | CHEST (cm) | |
| S | 71.1 | 45.7 | 86.4-94 |
| M | 73.7 | 50.8 | 96.5-104.1 |
| L | 76.2 | 55.9 | 106.7-114.3 |
| XL | 78.7 | 61 | 116.8-124.5 |
| 2XL | 81.3 | 66 | 127-134.6 |
| 3XL | 83.8 | 71.1 | 137.2-144.8 |
| 4XL | 86.4 | 76.2 | 147.3-155 |
| 5XL | 89 | 78.7 | 157.5-165 |
The Story Behind the Words — Iemoto’s Essay —
Iemoto speaks about “What is liver rest day?”

I’m the Iemoto—the head of ORERYU SOUHONKE. “What is a liver rest day?” The first thing I feel when I see these words is not logical. It's a thrilling feeling, as if the true feelings hidden deep within one's heart are suddenly brought to the surface. Although it is short, it brings out the scenery and sparks a conversation between the wearer and the viewer. That's where the fun begins with the GOROKU T-shirts.
This is not a word used to compete with the strength of alcohol. I read it as a signal to relax my shoulders at the end of a stressful day. “What is a liver rest day?“ is not a billboard with a good lesson to be learned. It's a word that exaggerates, a little bit funny, and puts the feelings that I thought I could say but couldn't into the heart of my heart. Even if you are silent, This shirt introduces you before you say a word.
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I think people don't always have to be strong. There are days when I get lost, days when I want to be lazy, and days when I want to look good. It's better to be able to laugh at your own quirks than to hide them and pretend to be perfect. This GOROKU has the boldness of not erasing weakness, but facing forward while embracing it.
Of course, I have no intention of offering alcohol to people who can't drink. The important thing is to take time to rejuvenate yourself, and that fuel can be a cup of tea, a coke, or a chat with friends. Even if your words are big, there is no need to be harsh in how you receive them. Check for yourself the real intentions behind the jokes, and be considerate of those around you. Only when you get to that point does this phrase become classy.
This T-shirt is for anyone who smiles and says, “I get it.“ It can be for yourself or as a gift for a friend who has the same feeling. Without saying a word, someone who passes by will read the words and break into a smile. Once you have that moment, your clothes will no longer be just a piece of cloth.
You don't have to force yourself to become a different person on the days you wear “What is a rest day?“ All you have to do is find your own mood, turn what you want to say into humor, and walk confidently. The vocabulary is not an answer, but an opportunity to make yourself interesting that day. I send these words out as a small flag for those who live with laughter. ― Iemoto, ORERYU SOUHONKE

Product Details & FAQs
Size & Fit
This is a unisex fit. Choose your usual size for a classic fit, or size up for a more relaxed, oversized look. Please check the size guide above before ordering.
Care Instructions
Machine wash cold, inside out, with similar colors. Use a gentle cycle and mild detergent. Tumble dry low or hang dry. Do not bleach, dry clean, or iron directly on the print.
Shipping & Returns
Each item is made to order. Printful production usually takes 2–5 business days, followed by approximately 3–4 business days for standard U.S. shipping. Delivery estimates may vary. Please review the Return Policy linked in the footer for eligibility and instructions.
About This Design & Product Details
Soft, lightweight unisex T-shirt with comfortable stretch.
• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk, side-seamed construction
• Shoulder-to-shoulder taping
• Printed on demand
ORERYU WORLD: Words from Japan
ORERYU WORLD is the global home of ORERYU SOUHONKE, a Japanese brand built around words. Every GOROKU design turns humor, conviction, and everyday wisdom into bold Japanese calligraphy you can wear.