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ichinichi studio

: ichinichi studio: The Architectural Foundation & Master Archive

Popcorn Overflow | No. 352, Unisex T-Shirt

Minimalist illustration of an overflowing movie popcorn bucket on a Short Sleeve T-Shirt.

A man in his 50s with a beard, wearing a black popcorn graphic t-shirt, stands in a rugged abandoned industrial warehouse with sunlight casting sharp shadows.

Popcorn Overflow | No. 352
Unisex T-Shirt $35.00

The Morning Ritual | No. 351, Unisex Pullover Hoodie

Line art illustration of a squirrel in a puffy robe holding coffee and a newspaper on a Pullover Hoodie.

Man standing in a neon-lit alleyway with Japanese signage

The Morning Ritual | No. 351
Unisex Pullover Hoodie $65.00

The Morning Ritual | No. 351, Unisex Long Sleeve T-Shirt

Line art illustration of a squirrel in a puffy robe holding coffee and a newspaper on a Long Sleeve T-Shirt.

Woman standing against a modern building with concrete walls and glass windows.

The Morning Ritual | No. 351
Unisex Long Sleeve T-Shirt $40.00

The Morning Ritual | No. 351, Unisex T-Shirt

Line art illustration of a squirrel in a puffy robe holding coffee and a newspaper on a Short Sleeve T-Shirt.

Woman wearing a beige t-shirt with a graphic design, standing against a brick wall.

The Morning Ritual | No. 351
Unisex T-Shirt $35.00

The Quiet Terminal | No. 350, Unisex Pullover Hoodie

Architectural blueprint style illustration of airport terminal icons and directional signage on a Pullover Hoodie.

Person wearing a gray hoodie with text design in an indoor setting

The Quiet Terminal | No. 350
Unisex Pullover Hoodie $65.00

The Quiet Terminal | No. 350, Unisex Long Sleeve T-Shirt

Architectural blueprint style illustration of airport terminal icons and directional signage on a Long Sleeve T-Shirt.

Person wearing a gray long-sleeve shirt and blue jeans standing on a wooden bridge with greenery around.

The Quiet Terminal | No. 350
Unisex Long Sleeve T-Shirt $40.00

The Quiet Terminal | No. 350, Unisex T-Shirt

Architectural blueprint style illustration of airport terminal icons and directional signage on a Short Sleeve T-Shirt.

Man wearing a light blue t-shirt with a graphic design, standing in front of a brick building.

The Quiet Terminal | No. 350
Unisex T-Shirt $35.00

The Shared Peak | No. 349, Unisex Pullover Hoodie

Minimalist line art illustration of two hikers with backpacks and their dog trekking through a mountain range on a Pullover Hoodie.

Man wearing a green hoodie with a mountain design in a forest setting

The Shared Peak | No. 349
Unisex Pullover Hoodie $65.00

The Shared Peak | No. 349, Unisex Long Sleeve T-Shirt

Minimalist line art illustration of two hikers with backpacks and their dog trekking through a mountain range on a Long Sleeve T-Shirt.

The Shared Peak | No. 349
Unisex Long Sleeve T-Shirt $40.00

The Shared Peak | No. 349, Unisex T-Shirt

Minimalist line art illustration of two hikers with backpacks and their dog trekking through a mountain range on a Short Sleeve T-Shirt.

The Shared Peak | No. 349
Unisex T-Shirt $35.00

Writer’s Bento | No. 348, Unisex Pullover Hoodie

A clean vector graphic of a bento box containing writing supplies and paperclips on a Pullover Hoodie.

Person wearing a green hoodie with a graphic design, standing in a room with large windows showing greenery outside.

Writer’s Bento | No. 348
Unisex Pullover Hoodie $65.00

Writer’s Bento | No. 348, Unisex Long Sleeve T-Shirt

Minimalist line art of a stationery-filled bento box including a pen and sticky notes on a Long Sleeve T-Shirt.

Man wearing a teal long-sleeve shirt with a graphic design, standing in an urban concrete setting.

Writer’s Bento | No. 348
Unisex Long Sleeve T-Shirt $40.00

Writer’s Bento | No. 348, Unisex T-Shirt

A minimalist vector illustration of a bento box filled with a fountain pen, pencil, notepad, and paperclips on a Short Sleeve T-Shirt.

Woman in a blue t-shirt walking through a busy city street with neon signs and pedestrians.

Writer’s Bento | No. 348
Unisex T-Shirt $35.00

Frank’s Dogs | No. 347, Unisex Pullover Hoodie

Minimalist illustration of a classic hot dog food truck with clean lines on a Pullover Hoodie.

Person wearing a hoodie with a red bus graphic in an urban night setting with a bridge in the background.

Frank’s Dogs | No. 347
Unisex Pullover Hoodie $65.00

Frank’s Dogs | No. 347, Unisex Long Sleeve T-Shirt

Minimalist illustration of a classic hot dog food truck with clean lines on a Long Sleeve T-Shirt.

Person standing in a park with trees and a lake in the background

Frank’s Dogs | No. 347
Unisex Long Sleeve T-Shirt $40.00

Frank’s Dogs | No. 347, Unisex T-Shirt

Minimalist illustration of a classic hot dog food truck with clean lines on a Short Sleeve T-Shirt.

Man wearing a gray t-shirt with a graphic design, standing in front of a modern building.

Frank’s Dogs | No. 347
Unisex T-Shirt $35.00

Smile Graffiti | No. 346, Unisex Pullover Hoodie

A minimalist pullover hoodie featuring a graffiti-style smile illustration with bold, expressive lines.

Person wearing a pink hoodie with colorful text, standing in an urban street with graffiti art.

Smile Graffiti | No. 346
Unisex Pullover Hoodie $65.00

Smile Graffiti | No. 346, Unisex Long Sleeve T-Shirt

White long-sleeve shirt with colorful 'SMILE' text design on a white background

Person wearing a white sweatshirt with colorful text in front of a modern building.

Smile Graffiti | No. 346
Unisex Long Sleeve T-Shirt $40.00

Smile Graffiti | No. 346, Unisex T-Shirt

A minimalist short sleeve t-shirt featuring a graffiti-style smile illustration with bold, expressive lines.

Person standing on a street with neon signs and graffiti in the background

Smile Graffiti | No. 346
Unisex T-Shirt $35.00

Spring Roll | No. 345, Unisex Pullover Hoodie

Minimalist line art illustration of a fresh spring roll with shrimp and vegetables, featured on a Pullover Hoodie.

Man wearing a gray hoodie with a graphic design, sitting outdoors in a garden setting.

Spring Roll | No. 345
Unisex Pullover Hoodie $65.00

Spring Roll | No. 345, Unisex Long Sleeve T-Shirt

Minimalist line art illustration of a fresh spring roll with shrimp and vegetables, featured on a Long Sleeve T-Shirt.

Person wearing a yellow sweatshirt with a graphic design, standing in front of a colorful mural.

Spring Roll | No. 345
Unisex Long Sleeve T-Shirt $40.00

Spring Roll | No. 345, Unisex T-Shirt

Minimalist line art illustration of a fresh spring roll with shrimp and vegetables, featured on a Short Sleeve T-Shirt.

Person wearing a white t-shirt with a design, green pants, and holding a black backpack in a modern concrete building.

Spring Roll | No. 345
Unisex T-Shirt $35.00

Matcha Martian | No. 344, Unisex Pullover Hoodie

Minimalist line art illustration of a small martian sitting cross-legged holding a matcha bowl, Pullover Hoodie.

Product mockup

Matcha Martian | No. 344
Unisex Pullover Hoodie $65.00

Matcha Martian | No. 344, Unisex Long Sleeve T-Shirt

Minimalist line art illustration of a small martian sitting cross-legged holding a matcha bowl, Long Sleeve T-Shirt.

Person standing in a concrete architectural space holding a rolled-up document.

Matcha Martian | No. 344
Unisex Long Sleeve T-Shirt $40.00

The architecture of a single day.

一日の設計。

Founded on the strict principles of Japanese minimalism and structural discipline, ichinichi studio is an ongoing study of the daily rotation. We do not chase seasonal shifts or temporary noise. Instead, we engineer permanent, uncompromising artifacts—garments and objects of utility designed with absolute visual weight, stark typography, and brutalist form. This is not a clothing brand; it is a master archive dedicated to the pure, physical manifestation of a single day.