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60-second free trial

No credit card registration is required.

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Using a secure link sent via email, you can experience "Yubizen" (Finger Zen)—featuring the sounds of spring water colliding with stones deep within geological strata—for approximately 60 seconds.

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The free trial is limited to one per household. Please cherish this unique experience.

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This experience is not intended for medical, diagnostic, or treatment purposes.

Norihisa Hosokawa | Founder and AI Tailor


"True luxury isn't about having more technology, but about having technology that you know when to stop using. As an engineer and a father, I meticulously create AI to protect those quiet, irreplaceable moments spent in the living room. My policy is that the greatest happiness comes from seeing my family laughing heartily in the living room."

Portrait of Norihisa Hosokawa, founder of HAKONE AI and Synapse Cascade Gomei Kaisha
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TOKYO ATELIER & HEADQUARTERS

Address
1F, 3-2-6 Hiyoshi-cho, Kokubunji-shi, Tokyo 185-0032, Japan

Contact
+81 (0)42 359 4368

Access
[By Train] 12-minute walk from Nishi-Kokubunji Station (JR Chuo Line)
[By Car] 15-minute drive from Kunitachi-Fuchu I.C. (Chuo Expressway)

Our Facilities

Synapse Cascade Gomei Kaisha
Operating Company

HAKONE AI Design Studio
Private AI design and family screen-time routine support

Heritage Heaven Secretariat
Administrative desk for related cultural and educational activities

Mindful Lifestyle Studio | totonoeru
Space for mindful lifestyle design, rhythm, and family dialogue

Zen & Mindfulness Desk
Listed with permission in connection with Soto Zen Cho-o-ji Temple

Culinary & Daily Rhythm Annex
A practical space for food, routine, and hands-on daily life design

Note:
All inquiries regarding HAKONE AI are handled by the Tokyo Atelier & Headquarters. Please do not contact any temple or related cultural location directly regarding HAKONE AI.

送信

SAFETY, PRIVACY & RESPONSIBLE AI NOTICE

HAKONE AI is designed as a family-focused digital wellbeing and parent-child communication support service.

It is not a medical, therapeutic, diagnostic, or emergency service. HAKONE AI does not diagnose, treat, prevent, or predict any disease, disorder, mental health condition, or school attendance outcome.

Our purpose is to support calmer screen-time routines, parent-child dialogue, and household rules around digital devices.

We design HAKONE AI with reference to widely discussed principles in child safety, privacy, responsible AI, data minimization, transparency, and human oversight. These include international discussions around children’s rights, AI governance, and privacy protection.

HAKONE AI is intended to be used with parental involvement. Use by children or minors should take place with the consent and supervision of a parent or legal guardian.

We aim to collect only the information necessary to provide the service and to explain how personal information is handled in our Privacy Policy. Data handling, storage, third-party AI providers, and security practices are described in our Privacy Policy and Terms of Service.

HAKONE AI is an independently developed service operated by Synapse Cascade Gomei Kaisha. It may use third-party AI infrastructure or APIs to provide certain features, but it is not affiliated with, endorsed by, or officially partnered with any AI provider unless expressly stated.

For urgent safety, medical, psychological, or emergency concerns, please contact appropriate local professionals or emergency services.

Operator: Synapse Cascade Gomei Kaisha
Links: Terms of Service | Privacy Policy | Accessibility Statement | Contact
© HAKONE AI / Synapse Cascade Gomei Kaisha. All rights reserved.

© 2026 HAKONE AI. All rights reserved.
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