Yu

"Idiot. Same team. Asshole."

- Yu to Frankie after he attempted to shoot Yu.

Yu 'Refum was a Sangheili soldier stationed in Blood Gulch Outpost #2, in Blue Team. Yu lived his whole life on Sanghelios, so his english is very poor, receiving english lessons from his son who had studied aboard. Before Blood Gulch he had gotten married and had children. He was sent to Blood Gulch after asking for a vacation.

He showed a disgust for human technology, calling it "primitive" and "disgusting".

Yu made several attempts to take the Red's flag, planting plants with psychdelic effects and at one point knocking on Red Base and buying it from Klopp for 2400CR, or $2.40 USD.During his considerably short time in the canyon, he also got into a few conflicts, mainly with Wade, over his race.