B Line by A train is a bar and restaurant on the second floor near Huashan in Taipei, serving cocktails and food together. Its menu includes truffle omelette, steak pasta, french fries and handmade dumplings, and the strength of the drinks can be adjusted. It sits close to Zhongxiao Xinsheng Station and has a smoking area and an air-conditioned toilet, and cakes brought in are plated for guests. The room is loud with people's voices, and the cocktails fall short in taste and layers.