TO TO YA is a sushi restaurant in Causeway Bay, Hong Kong, at Shop 405, Windsor House, 311 Gloucester Rd. It serves sushi, sashimi, and fried dishes, with hokuban clam salad, soft-shell crab roll, and sushi made with Japanese rice listed as signature items. Customers scan a QR code to order from an English menu, and on weekend afternoons entry can take more than 10 minutes. Staff service is not smooth, and staff often do not respond well to questions or calls.