Tenkaichi is a small Japanese ramen and rice bowl shop in Noryangjin 1-dong, Dongjak-gu, Seoul, an eight-minute walk from Noryangjin Station Exit 3. It serves shoyu ramen, tonkotsu ramen, and chashu, salmon, and butadon rice bowls, with optional extra toppings. Orders are placed automatically after prepayment at the table. The shop is small, so waits are long during busy hours.