Synopsis
On a cold April morning, a group of schoolchildren is living a great adventure. Kota, Junichi, Noboru and his sister Yumiko leave Tokyo to spend a holiday riding around Japan. Their Master Tori Zuka decides to go with them. At first he disapproves of this plan but eventually changes his mind and everyone leaves at five in the morning. On the evening of the first day they stop at the Taka Saki Temple where an old priest prepares them to eat. The next morning they prepare to leave but meet an abandoned dog and Yumiko wants to take it with her. Later they have an accident. Kota, trying to fish in a quagmire, falls into it. Tori Zuka trying to help him hurts his leg and can not ride a bike. They think then that they are forced to go back but Tori Zuka says that she takes the train and will wait for them at her destination. Happy the four leave again. On the way they meet a beautiful girl called Midori and, to their surprise, they learn that she is suspected of being a thief. convinced of his innocence they go in search of the guilty with the help of a friend machinist. On the fifth day they finally reach the blue sea of ​​Japan. Tori Zuka is waiting for them. Together they sit and watch the sea.