Yayoiken is a Japanese-style set meal restaurant on the B2 floor of Dream Plaza in Taipei. It serves a Nagoya eel three-piece set meal and a black vinegar vegetable chicken set meal, with refills of rice, miso soup, and pickled radish. Orders are placed on a table tablet or a phone, and there are single seats and partitions between tables. The seating is packed tightly enough that conversations at the next seat can be heard.