Kissa Hitotsu 喫茶ひとつ
One of Tokyo’s best pour-overs, on a second floor nobody looked up at.
- location
- Kiyosumi-Shirakawa, Tokyo
- service
- Paid Ads
- result
- 2.3× weekday visits
Mori-san spent 12 years as a roaster before opening Hitotsu: 14 seats on a second floor in Kiyosumi-Shirakawa, single-origin hand drip, and a seasonal fruit sando that sells out every weekend. Weekends filled up through word of mouth. Weekdays didn’t:
- The location: up a narrow staircase with a small sign. People walked past without knowing it was there.
- The district: known for specialty coffee, and the big names took the tourist traffic.
- Ads: an occasional boosted Instagram post in Japanese only, shown to followers who already knew it.
- Google Maps: no ads at all. Searches for “coffee near me” surfaced three larger cafés first.
- Tracking: no way to tell whether any ad had brought anyone up the stairs.


“We walked right past it twice.”
Hitotsu didn’t have a coffee problem. It had a findability problem. The ads had one job: make the staircase the destination.
Tuesday, 10:20am
Two travellers from Taipei were standing on the corner looking at Google Maps for coffee. A sponsored listing appeared: “pour-over coffee on the second floor”, 80 metres away. They walked up the stairs, showed the code and got the sando. That afternoon one of them posted it to 30,000 followers and tagged the café. By Friday, people were climbing the stairs holding up her post.
The system
Mori-san’s time: one filming morning a month before opening, and a 20-minute review call every two weeks. We make the ads in four languages, run the campaigns and set up Instagram.
The team it replaced
- 2.3×
- weekday visits
- ¥310
- per tracked visit
- 4,800
- new Instagram followers
90 days later
- Weekday visits rose 2.3×. Mornings went from four tables to waiting for a seat.
- Cost per tracked visit settled at ¥310, measured through Instagram coupons and counter codes.
- 4,800 new Instagram followers, who now hear about each new seasonal menu for free.
- 31% of tracked visits came from visitors. The other 69% were locals, and Mori-san wanted the locals most.
- Direction requests on Google Maps rose 3.8×.
“People used to walk past us. Now they come looking for the staircase.”
Mori-san
discovery call