Starting a chat with him will initiate the 8th Heroine quest in Zelda BOTW. Note: Make sure you have the Gerudo Outfit before talking to Bozai. This will make you look like a pretty desert woman ...

Side quests you can do in Champions Ballad There are a bunch of side quests that you can complete due to the newly added content of DLC. With these side quests, you get different armor and items.