Self0's Solo Meeting Paper Method Adopted for Saishunkan Pharmaceutical's New Experience/Travel Service 'Kokorobi' – Collaboration with atelier ERICA Begins in Spring 2026
Atelier ERICA's lifestyle brand 'Self0's Solo Meeting Paper method' has been adopted by Saishunkan Pharmaceutical's new experience and travel service 'Kokorobi.' This collaboration, starting in Spring 2026, stems from both companies' shared value for 'the preciousness of time for careful self-reflection.'
📋 Article Processing Timeline
- 📰 Published: May 2, 2026 at 01:30
- 🔍 Collected: May 1, 2026 at 17:02
- 🤖 AI Analyzed: May 1, 2026 at 17:36 (34 min after Collected)
Atelier ERICA Co., Ltd. (Headquarters: Setagaya-ku, Tokyo; Representative: Erika Yamaguchi), which operates the lifestyle brand 'Self0,' and Erika Yamaguchi's proposed solo meeting method, have been adopted as part of 'Kokorobi' (retreat program), a new service integrating 'the wisdom of Chinese medicine x travel experience' by Saishunkan Pharmaceutical Co., Ltd. (Headquarters: Kamimashiki-gun, Kumamoto Prefecture; Representative: Masaaki Nishikawa). The objective of this program is to provide time for participants to re-center their mind and body through journaling and other content, aiming beyond just a 'fun' travel experience. The intention is for participants to take home the knowledge, emotions, and thoughts gained during their trip as souvenirs, enabling them to live authentically and true to themselves even after returning to their daily lives. Within this context, the solo meeting method was adopted.
Press release regarding Saishunkan Pharmaceutical's 'Kokorobi':
https://prtimes.jp/main/html/rd/p/000000134.000051751.html
■Background to this Collaboration
The impetus for this collaboration was a deep resonance between both companies' desire to cherish 'the preciousness of time for careful self-reflection.' While building the program together, Representative Yamaguchi commented on her method: "The Solo Meeting Paper may look like just paper, but it is never just that. It is something I can offer precisely because I have experienced truancy and the death of my father, and have earnestly faced life and death every day; it is my very life itself." Retreats are a time to step into an extraordinary environment, shed armor, and recharge the soul. This collaboration was realized because both companies' directions perfectly aligned in their desire to offer such enriching time to their customers.
[Comment from Erika Yamaguchi, Representative Director, atelier ERICA Co., Ltd.]
This is the first collaboration for my company since its establishment, and it is with Saishunkan Pharmaceutical. Although our company and brand are still like tiny stars, achieving alliances has been a goal since founding. I have been working towards this unveiling, feeling the meaning and responsibility of this '× (squared)' between 'Saishunkan Pharmaceutical × atelier ERICA.' This would never have been possible alone; I extend my sincere gratitude to Discover 21, Loft, Tokuma Shoten, Jiyu Kokuminsha, and all other stakeholders who have provided valuable opportunities and support for brand expansion and recognition. Our partnership with Saishunkan Pharmaceutical will continue in new forms beyond this occasion. Please look forward to it.
Erika Yamaguchi
[Comment from Saishunkan Pharmaceutical Co., Ltd. Experience Creation Division]
In an era where information is easily accessible anytime, we feel that the time spent quietly preparing paper and pen to put one's current self into words is truly luxurious and precious. We hope this initiative will help our customers gently face their minds, which tend to be left behind in busy daily routines, and become a richly meaningful time for them.
[About atelier ERICA Co., Ltd.]
Founded on August 4, 2023, its lifestyle brand 'Self0's Solo Meeting Paper' has become a long-selling product. In January 2025, 'Workbook for Solo Meetings to Organize Your Mind by Writing' (Discover 21), which adopted and newly edited the Solo Meeting Paper method, was published and is now in its 8th printing with over 30,000 copies sold. With significant social impact, 'Self0's Solo Meeting Paper' also began sales at Loft in October of the same year. Since its launch, many customers have picked it up for nearly 8 months, and the world of Self0 is gradually penetrating the market. The brand concept, 'Writing is Living,' encapsulates Representative Erika Yamaguchi's strong feelings and determination, repeatedly reflected upon during her experiences with truancy and the death of her beloved father, believing she could not have continued living without writing (self-introspection). Recognized for its unique brand story, it has been featured in Yomiuri Shimbun, Sankei Shimbun, over 20 local newspapers, DayDay., J-WAVE, Nippon Broadcasting, Liniere Special Edition, and many other media. (https://selfmeeting.base.shop)
[About Saishunkan Pharmaceutical Co., Ltd.]
Founded in Kumamoto in 1932, it is a 'Chinese medicine pharmaceutical company' that manufactures and sells pharmaceuticals, quasi-drugs, and cosmetics based on Chinese medicine principles, including 'Tsusanto' and 'Domohorn Wrinkle.' It maximizes the potential of carefully selected ingredients, based on the concept that 'humans are part of nature,' with pharmaceutical company technology to harness the power of nature.
Press release regarding Saishunkan Pharmaceutical's 'Kokorobi':
https://prtimes.jp/main/html/rd/p/000000134.000051751.html
■Background to this Collaboration
The impetus for this collaboration was a deep resonance between both companies' desire to cherish 'the preciousness of time for careful self-reflection.' While building the program together, Representative Yamaguchi commented on her method: "The Solo Meeting Paper may look like just paper, but it is never just that. It is something I can offer precisely because I have experienced truancy and the death of my father, and have earnestly faced life and death every day; it is my very life itself." Retreats are a time to step into an extraordinary environment, shed armor, and recharge the soul. This collaboration was realized because both companies' directions perfectly aligned in their desire to offer such enriching time to their customers.
[Comment from Erika Yamaguchi, Representative Director, atelier ERICA Co., Ltd.]
This is the first collaboration for my company since its establishment, and it is with Saishunkan Pharmaceutical. Although our company and brand are still like tiny stars, achieving alliances has been a goal since founding. I have been working towards this unveiling, feeling the meaning and responsibility of this '× (squared)' between 'Saishunkan Pharmaceutical × atelier ERICA.' This would never have been possible alone; I extend my sincere gratitude to Discover 21, Loft, Tokuma Shoten, Jiyu Kokuminsha, and all other stakeholders who have provided valuable opportunities and support for brand expansion and recognition. Our partnership with Saishunkan Pharmaceutical will continue in new forms beyond this occasion. Please look forward to it.
Erika Yamaguchi
[Comment from Saishunkan Pharmaceutical Co., Ltd. Experience Creation Division]
In an era where information is easily accessible anytime, we feel that the time spent quietly preparing paper and pen to put one's current self into words is truly luxurious and precious. We hope this initiative will help our customers gently face their minds, which tend to be left behind in busy daily routines, and become a richly meaningful time for them.
[About atelier ERICA Co., Ltd.]
Founded on August 4, 2023, its lifestyle brand 'Self0's Solo Meeting Paper' has become a long-selling product. In January 2025, 'Workbook for Solo Meetings to Organize Your Mind by Writing' (Discover 21), which adopted and newly edited the Solo Meeting Paper method, was published and is now in its 8th printing with over 30,000 copies sold. With significant social impact, 'Self0's Solo Meeting Paper' also began sales at Loft in October of the same year. Since its launch, many customers have picked it up for nearly 8 months, and the world of Self0 is gradually penetrating the market. The brand concept, 'Writing is Living,' encapsulates Representative Erika Yamaguchi's strong feelings and determination, repeatedly reflected upon during her experiences with truancy and the death of her beloved father, believing she could not have continued living without writing (self-introspection). Recognized for its unique brand story, it has been featured in Yomiuri Shimbun, Sankei Shimbun, over 20 local newspapers, DayDay., J-WAVE, Nippon Broadcasting, Liniere Special Edition, and many other media. (https://selfmeeting.base.shop)
[About Saishunkan Pharmaceutical Co., Ltd.]
Founded in Kumamoto in 1932, it is a 'Chinese medicine pharmaceutical company' that manufactures and sells pharmaceuticals, quasi-drugs, and cosmetics based on Chinese medicine principles, including 'Tsusanto' and 'Domohorn Wrinkle.' It maximizes the potential of carefully selected ingredients, based on the concept that 'humans are part of nature,' with pharmaceutical company technology to harness the power of nature.