After the completion of "The Eighth Heroine", Bozai can be found at a tent outside of the front of Gerudo Town.

Where can I find Bozai?

Overview. Bozai is a Hylian male who can be found running around the perimeter of Gerudo Town after Link has acquired the Camera rune.

How do I activate the forgotten sword quest?

The Forgotten Sword side quest begins when you speak to Bozai after completing The Eighth Heroine side quest. At the end of the previous quest, you had to turn in your snow boots to get sand boots. In this quest, you'll get the snow boots back.