When you enter Nisei in San Francisco’s Russian Hill neighborhood, you may experience a little deja vu if you’ve dined at Michelin two-starred Californios in SoMa.

The walls are a dramatic dark charcoal, just like at that daring, high-end Mexican restaurant. Both establishments were designed by Carolyn Cantu, co-owner of Californios, to create a cloistered yet elegant atmosphere. Some of the plateware are rough-hewed. minimalist matte gray at both, too.

And of course, there’s also an uncanny banana-caviar dish at each that will leave you talking long after you’ve taken the last bite.

It’s all not by coincidence, but in tribute, as Nisei Chef David Yoshimura was formerly the chef de cuisine of Californios. He opened Nisei in August to spotlight washoku cuisine or Japanese home-cooking that has deep reverence for seasonality and purity of flavor, and is often centered around rice.

In other words, don’t come expecting California rolls and chicken teriyaki. In much the same way that Chef Val Cantu doesn’t do burritos necessarily, but has broadened the definition of Mexican food, Yoshimura, who also worked at New York’s cutting-edge wd-50, does so with Japanese-American food, serving a 12-course tasting menu for $184.

Nisei does not offer outside dining, though its Bar Iris next door, which serves up Asian-inspired craft cocktails and small bites, has a parklet. If you dine inside at Nisei, the host will carefully check your ID and proof of vaccination before seating you. When I was invited in as a guest of Nisei recently, the restaurant actually let my husband and I sit by ourselves in the private dining room — with its own portable air filter system off in a corner — since the room wasn’t otherwise booked.

While the main dining room is adorned with brightly colored murals, the private dining room is more sedate with a gorgeous kimono hanging on one wall, and a unique triptych on another that’s over-layed with gold leaf designed to flake off over time, altering the work’s composition naturally. Fleetwood Mac and other classic rock tunes play over the sound system to impart a casualness to it all, despite the room’s inherent grace.