Ojiichan Wa 25 Sai (2010)

Description:

Fujiwara stars as a man who was in an accident on a snowy mountain 46 years ago. His frozen body is discovered in the present day, and despite being actually 71 years old, he has the appearance and personality of a 25-year-old. He also learns that at his old home in Oshiage, Tokyo, his son is now 52 years old and is raising two children of his own – a 25-year-old son and a 20-year-old daughter.