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Japan Rated Stays
OSTERIA SINCERITÀ
OSTERIA SINCERITÀ

Three suites, each with a hinoki tub of undiluted spring water.

OSTERIA SINCERITÀ is a three-room auberge at Akayu Onsen in Nanyo, Yamagata, run as the annex of Yamagata The Takinami. Each room is a 135-150 m² maisonette with two twin bedrooms and a cypress open-air bath, and the ALBA and MONTE rooms each add a private sauna. The hot spring is piped straight from the source with no added water, and there is also a bath of Zao stone. Chef Makoto Harada cooks Italian dinners from Okitama Basin produce such as Yonezawa beef and organic Funagata mushrooms, served at an open-kitchen restaurant on the ground floor. The whole building is non-smoking with no lift, and guests are asked to keep quiet.

OSTERIA SINCERITÀ

Rate

From US$506 per person

From US$1,010 for 2 guests (1 room)

Per person, per night, with dinner and breakfast. Quoted by the property or its booking pages; taxes and the bathing levy may sit outside it. Shown in US dollars, converted from the yen the property quotes at the Oct 7, 2026 reference rate; the booking site charges at its own rate.

Dates and guests

Your selection is carried into supported booking sites so you can compare the same stay.

The stay

Private bath
Every room has one

Practical details

From the property’s or its operator’s official website. Only what the site states is shown.

Getting there
About 5 min by taxi from Akayu Station (Yamagata Shinkansen, about 140 min from Tokyo); free shuttle from Akayu Station twice at check-in (14:30, 15:30) and twice at check-out, reservation required
Source: osteria-sincerita.com (opens in a new tab) · Checked Oct 8, 2026
Nearest station
Akayu Station (Yamagata Shinkansen / JR Ou Line)
Source: osteria-sincerita.com (opens in a new tab) · Checked Oct 8, 2026
Check-in
15:00
Source: osteria-sincerita.com (opens in a new tab) · Checked Oct 8, 2026
Check-out
11:00
Source: osteria-sincerita.com (opens in a new tab) · Checked Oct 8, 2026
Dinner
Italian dinner by chef Makoto Harada, served at the ground-floor open-kitchen restaurant Stanza della SINCERITÀ (no in-room dining); takes about 2 hours; optional Italian natural-wine pairing
Source: osteria-sincerita.com (opens in a new tab) · Checked Oct 8, 2026
Breakfast
Japanese-style breakfast built around Kurosawa Farm 'Yumegokochi' rice cooked in an earthen pot, served in the restaurant
Source: osteria-sincerita.com (opens in a new tab) · Checked Oct 8, 2026

Tattoos, special diets, accessibility and solo stays: see “Before you book: what the property officially says” below.

Before you book: what the property officially says

Answers taken from the property’s or its operator’s official website, with the exact wording. We only show what the site states.

The property’s official site doesn’t clearly state its policy on tattoos, special diets, accessibility or solo stays — ask the property before booking.

Against the 179

Size
3 rooms— In the smallest quarter of the 179, which run 1 to 508
Award
One MICHELIN Key
Type
Auberge— 23 of 179
Where
Yamagata— 2 of 179

The catalogue’s own axis

  • 3 Keys7 stays
  • 2 Keys23 stays
  • 1 Key113 stays
  • Relais & Châteaux15 stays
  • The Ryokan Collection46 stays

One MICHELIN Key — the largest group in the catalogue.

For scale: the smallest stay in this catalogue is Hakone Kairai at 1 room, the largest The Okura Tokyo at 508.

Nearby

Cherry blossoms and pink lanterns along a path in Eboshiyama Park

Eboshiyama Park

≈ 0.6 km away · Park

The thatched-roof main hall of Kumano Taisha shrine

Kumano Taisha

≈ 4.4 km away · Shrine

The reedy shore of White Dragon Lake below terraced vineyards

White Dragon Lake

Lake

The tree-lined moat of the Yonezawa Castle ruins

Yonezawa Castle

Castle

The hot-spring town of Onogawa Onsen nestled among green mountains

Onogawa Onsen

Onsen

The snow-capped Iide mountain range seen across the Okitama basin

Iide Mountains

Mountains

Distances are in a straight line from this property, not travel times. Locations from OpenStreetMap · © OpenStreetMap contributors (ODbL)

Photos: © アラツク (CC BY-SA 4.0) · © Towacoco (CC BY-SA 4.0) · © Fantasy Leigh (CC BY-SA 3.0) · © Satoshin (CC BY-SA 3.0) · 妖精書士 (CC0) · © Tomofumi Sato (CC BY-SA 3.0)

About the ratings

1 KEY

One MICHELIN Key

The MICHELIN Guide's distinction for hotels — a Key, not a star — for the places its inspectors judge among the most special to stay.

Good to know

Are meals included in the rate?

The rate shown is per person and includes dinner and breakfast.

Does every room have a private bath?

Yes — every room has its own private bath.

How many rooms does OSTERIA SINCERITÀ have?

OSTERIA SINCERITÀ has 3 rooms.

How do you get to OSTERIA SINCERITÀ?

About 5 min by taxi from Akayu Station (Yamagata Shinkansen, about 140 min from Tokyo); free shuttle from Akayu Station twice at check-in (14:30, 15:30) and twice at check-out, reservation required

What is the nearest station to OSTERIA SINCERITÀ?

Akayu Station (Yamagata Shinkansen / JR Ou Line)

What time is check-in at OSTERIA SINCERITÀ?

15:00

What time is check-out at OSTERIA SINCERITÀ?

11:00

What are the dinner arrangements at OSTERIA SINCERITÀ?

Italian dinner by chef Makoto Harada, served at the ground-floor open-kitchen restaurant Stanza della SINCERITÀ (no in-room dining); takes about 2 hours; optional Italian natural-wine pairing

What are the breakfast arrangements at OSTERIA SINCERITÀ?

Japanese-style breakfast built around Kurosawa Farm 'Yumegokochi' rice cooked in an earthen pot, served in the restaurant

How do I book OSTERIA SINCERITÀ?

Use the booking links near the top of this page. Prices and cancellation terms differ between sellers, so it is worth comparing more than one.

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