note serialization of "forest sommelier training diary Serialization of 100 episodes will begin in May 2026.

SHOKAY, DGBH (Doubletree, Inc.) (Head office: Sapporo, Hokkaido; President: Tamiko Hayashi), which operates the content business "DGBH (DoGood, BeHappy!)," which proposes a mindful lifestyle, will start a serial "Forest Sommelier Training Diary" by Tamiko Hayashi on the "note" media platform from May 2026. The serialization is based on the concept of "forest bathing and forestry" and "forest sommelier training. This series is a journey of exploration in which the author writes a total of 100 episodes about her wisdom and experiences born from her deep love for forest bathing and giant trees.

Forest Sommelier Training Diary

Background and Motivation for Serialization

What is a "forest sommelier"?

Forest Sommelier" is a term coined by the author, Tamiko Hayashi. Based on her experience of acquiring certification from the Association of Nature & Forest Therapy (ANFT) in the United States and completing a training course for "forest medical trainers" certified by Shinano-cho, Nagano Prefecture, this initiative aims to become a person who can deliver "forest prescriptions. They will serve as comprehensive forest guides, from introductions to recommended forests, giant trees, waterfalls, flora and fauna, to information on lodging, food and beverages useful for forest therapy trips.

◎Why forest therapy?

Since I was a child, the forest has been my playground. I have felt "home" in nature.

I encountered a Blakiston's fish owl in the forest at the foot of Mt. This mystical experience solidified his commitment to forest-based activities.

Thoughts on the Serialization

This series was born out of a genuine desire to repay the debt of gratitude for the help of the forest. We aim to provide an opportunity for people with illnesses, people with disabilities, children, and the elderly to enjoy the forests that are close at hand throughout the four seasons. We also hope to convey the importance of time for solitary reflection in this age of AI and digital information overload, and to bring "Prescription for the Forest" to a wider audience in society.

■Magazine Outline

Magazine Name ： "Forest Sommelier Training Diary

Author ：Tamiko Hayashi @DGBH

Publication platform ：note( https://note.com/dgbh/ )

Concept ： 100 things the forest taught me.

Number of stories: 100 stories in total (tentative)

Start date : May 2026

Forest Sommelier Training Diary [Episode 1] Introduction

About DGBH

In 2010, he produced "DGBH (DoGood, BeHappy!)," a one-year limited select store at Omotesando Hills that proposes an ethical lifestyle centered on SHOKAY. Since then, with the concept of "living a happy life while enjoying a mindful lifestyle," we have developed a wide range of businesses including seminars, travel planning and management, product planning and development, content creation, etc. At note, we have published the magazines "Cancer Journey: Adventures around Cancer," "Happy Closet~. The ABCs of Mindful Style," "The Forest, the Field, and.... Sometimes. Niseko version" and "Lavender at Okusuri Farm" are currently being serialized.

URL: https://note.com/dgbh/

About SHOKAY

SHOKAY, the world's first regenerative material brand specializing in yak, is a social business founded in 2006 by two female students studying international cooperation at Harvard University's Kennedy School of Government to help solve poverty issues among the Tibetan people. The story of the company's founding is compiled in the book, "Sekai wo Chan Kaeru Oshigoto" (Kodansha, 2010). Yak hair is a rare material, with only 100g of hair harvested per cow per year, but it is characterized by its warmth, breathability, and flexibility that surpass cashmere, and its resistance to pilling. The company produces and sells high-quality knit products and yarns with full traceability, contributing to the achievement of 12 of the 17 UN SDGs.

URL: http://shokay.jp

■Company Profile

Company name: Doubletree Co.

Location: Chuo-ku, Sapporo, Hokkaido

Representative Director: Tamiko Hayashi

Establishment : July 8, 2008

Main Business: (1) Sole distributor of ethical yak material brand SHOKAY in Japan

　　　　　　(2)Content planning and production business "DGBH (DoGood, BeHappy!)-", "Mindful Style × Happy Clothing

　　　　　　DGBH (DoGood, BeHappy!)" - seminar and travel planning operations, product development, and content production under the theme of "Mindful Style × Happy Closet".

　　　　　　DGBH (DoGood, BeHappy!) - Operation of seminars and travel planning, product development, content production and information dissemination under the theme of "Mindful Style × Happy Closet

　　　　　　(3) Vacation and vacation house business

　　　　　　(3) Vacation and work vacation house business - "Okusasu Cottage" in Niseko Town, Hokkaido, which combines forest therapy and retreats.

　　　　　　(3) Vacation and vacation house business - "Okusuri Farm," a cottage for rent in Niseko Town, Hokkaido, combining forest therapy and retreat (in preparation)

Profile of Representative Director Tamiko Hayashi

After working for a foreign entertainment company, a publisher of VOGUE NIPPON, and in PR for European and American fashion brands, she established the NPO "Social Concierge" in 2007. She has been practicing yoga and meditation for over 30 years, and has completed the Tatsumura Yoga Teacher Training Course and the Clinical Meditation Teacher Training Course. She is a certified forest therapy guide in the U.S. and has also completed the "Forest Medical Trainer" training course certified by Shinano-cho, Nagano Prefecture. She is a member of the Shinano-cho Forest Therapy Study Group "Hitotsuki no Kai". Currently, she is preparing "Okusuri Farm," a one-room retreat cottage in Niseko Town, Hokkaido, which will offer a field garden experience and forest therapy program.

Instagram: @tamikohayashi

URL : https://www.instagram.com/tamikohayashi/

Please contact us in advance when reprinting or quoting the content or photos in this release, with "Doubletree, Inc." credited as the source.