Looks like a few characters from Yuri!! on Ice have wandered into the world of Steven Universe.
The four appeared on the 4th issue of the Steven Universe comic by author Melanie Gillman and illustrator Katy Farina.
Whenever I’m feeling like I can’t do something I think back to the series and his journey.”
It seems that Yuri Katsuki, Viktor, Yuri Plisetsky, and Otabek Altin were all spotted attending a local Renaissance Faire in Beach City, which of course is the setting of Cartoon Network’s Steven Universe.