Lake Kawaguchi, where the colors of greenery, sky, and surrounding mountains gently reflect on the calm water’s surface.
A space where you can forget everyday life and savor the quiet luxury of experiencing nature’s four seasons — time flows here with comforting ease.

“KOS” is a Norwegian word from one of the world’s happiest countries, meaning “coziness,” “comfort,” and “simple happiness.”

It is the kind of happiness you feel in unremarkable yet precious moments — sharing delicious food, laughter, and time with someone important to you.
KOS is a Restaurant & Hotel designed to bring a deep sense of well-being, fulfillment, and heartfelt contentment.

Designed with an inviting layout centered around the aroma of a wood-fired oven, this restaurant combines a warm aged character with refined style.
In its comfortable atmosphere, meals become lively moments filled with conversation.

In the evening, it transforms into a bar overlooking Lake Kawaguchi through glass windows — the perfect setting to begin a deep and tranquil night.

A cohesive space designed to highlight the sloped ceiling and exposed beams.

In the living room overlooking Lake Kawaguchi, you can relax while watching the gentle flicker of the fireplace, sharing wine or whiskey and meaningful conversation with family and friends.

True to the spirit of “KOS,” this is a space where you can experience a warm sense of comfort and happiness.