He reached Kuroki.
The most straightforward and recommended way to get updates and DLC for Sifu on your Nintendo Switch is through the official Nintendo eShop. You can check for updates by opening the eShop, going to your account (usually accessible via a profile icon), and selecting "Software & digital content" or directly through the game's page if you have it there. sifu switch nsp update dlc link
I see you're looking for information on Sifu for the Nintendo Switch! He reached Kuroki