C106 The Standard Answer to Bright Love(1)
I don't know who figured it out.
In order to call Yoshi back, every June 20th, people would wake up at three in the morning and wait by the river nearby. At dawn, the boat lights would be placed on the dark surface of the river, allowing the water that flowed to the sea to pass the 'light' to Yoshi. He also looked at the place where the sun rose and prayed until the sun rose as usual