And Y cafe is on a square next to the Don State Public Library in the city in southern Russia. With lots of universities in the area, the owner of And Y cafe predicted a high level of footfall in the area.
To cope with a lot of people in such a narrow space, Eremchuk designed a set of modular-furniture blocks with wheels on their base.
"The shapes of the furniture were inspired by Tetris cubes, which are also transformable and very mobile," he told Dezeen.
"The space came out very flexible and you can change its organisation literally every day."
The geometric benches and stools are made of mesh and were produced by a Rostov-on-Don furniture company called Delo.
A long table for a big group of people has rounded column stands and was made by a local factory.
By the windows, extended tables with chairs or high stools provides seating for individual visitors to the cafe. All the furniture is realised in a matching "energetic" shade of orange.
To make the cafe emulate the design of a subway station, Eremchuk chose different tiles for different surfaces.
The kitchen hatch is tiled in glossy, blue, square tiles, to contrast with the white walls and grey-tiled floors.
In the bathroom, cafe visitors get a surprise in the form of the "unexpected cow pattern" of the wall-to-wall black and white tiles.
Even the sink is tiled in cow print, with simple white taps protruding from the zany wall.
Back in the main area of And Y cafe, screens on ceiling mounts are the main decorative feature, aside from a couple of pot plants dotted around the space.
The screens play "meditative videos about urban cities, lifestyle, nature with glitch filters" to create what Eremchuk described as a "super futuristic atmosphere".
Photography is by Inna Kablukova.