Professor Ueno buys a puppy for his daughter. The relationship between the professor and Hachiko, the dog, soon becomes a special one. Hachiko accompanies him to the station every morning and awaits his return at 5.30 in the afternoon.

When Ángela - blonde and perfect - is too ill to travel to Ireland, her sister, Marina, a specialist in problems and disasters, goes in her place.

An unknown adult unexpectedly turns up in the lives of Gilmar and Lanh at the same time but in different parts of the world.