Black Jack OVA
Night Time Tale In the Snow
S1 E6:
Black Jack receives a big parcel posted two years ago, in which he finds a huge some of money and a letter. The letter reads, "My wife may not survive more than another day. Please hurry. Please save her" Black Jack rushes off to a remote village to see the client. He, however, is lost and trapped in the strong blizzard, falling asleep for a split second.