Branch
Our Locations
Find a quiet pause, closer to your home.
Our spaces are designed as urban sanctuaries, where Japanese onsen rituals meet modern serenity.
Your moment of warmth awaits
Individual approach
Private Onsen. Restorative Rituals. Timeless Balance.
Rooted in Japanese heritage, Onsei offers a private retreat for profound renewal. Immerse in the purity of authentic onsen bathing and tailored massage rituals - crafted to restore balance, soothe the senses, and awaken your inner calm.
- Authentic Japanese-inspired private onsen
- Tradition-rooted treatment excellence
- Serene space for body, mind, and spirit