Months of poor business forced Hongkonger Emma and her husband Wai to close one of their Japanese omakase restaurants in February, despite its prime location in Causeway Bay. With their lease not yet expired, the pair swiftly transitioned to fast-food-style chicken chops costing less than HK$100 per meal. The up-market omakase – typically priced around HK$1,000 per person – just could no longer generate enough income, they told HKFP. The bold move may have saved them from joining a wave of shops and restaurants which have closed down in recent months. Shutters and rental posters have become hi…