Tsukumo is a small rice-bowl restaurant in the Bangi-dong food alley in Songpa-gu, Seoul, serving Japanese food. Its signature hairtail rice bowl tops de-boned hairtail with a Japanese-style soy sauce seasoning and serves it over rice. One owner runs the place alone, so customers order first at a kiosk at the entrance and return their trays themselves after the meal. The shop is small, so a line forms right after opening and food takes time to arrive.