Zhui Ai (2016)

The year is 1616. The Ninja warrior is sent to investigate one of his rival clan. Unfortunately he get caught by his rivals and a fight begins between them as warriors, but the ninja and one of the rival soldiers accidentally hit a time portal that send them both to the future. They arrive to Taipei 2016 and suffer of insomnia. A beautiful doctor by the name of Mei try to help them both and eventually they become friends, and the former ninja falls in love with Mei. However their memories start to haunt them and red samurai reveal their rival past. Will they stay friends or will they fight?