Seafood Izakaya Senjaku Ueno Okachimachi Branch is a Japanese izakaya near Ueno-Okachimachi Station that serves Hokkaido lamb alongside seafood shipped directly from Toyosu. It grills raw lamb, seasoned rosu, and lamb chop, and also offers grilled oysters, grilled shellfish, and ochazuke. The venue opened in December 2024 and has 86 seats across the second through fourth floors, including private rooms. There is no elevator, so guests going to the upper-floor private rooms must take the stairs.