Today, it is a Memorial Day.
Eight years ago, the Northern Japan was hit by the Great Northern Earthquake and Tsunami and took lives of over 15,000 people.
There are 2,500 candles with a message on washi (Japanese washi paper) representing the ballon at the park of Tokyo Midtown Roppongi.
Each message is written by those living in the hit area: Iwate, Miyagi and Fukushima.
The ballon is sending a message of 2,500 people.
There are digital Tanzaku (strip of paper) to send a cheering message to people who are living and trying to reconstruct the Northern Japan.