Both sides are brothers-in-arms, our own people; siding with either one would be wrong, which made Gao Guang's position somewhat awkward.
Gao Guang had to maintain neutrality. He could only cheer for both sides equally, and the people from King's Defense did the same. One was an old brother who had gone elsewhere, and the other a new brother who had just arrived from KGB. It wouldn't be proper to root for either.
It was the same for Otto and Heidi.
Fang Zhenwu was currently with the Shadowless, and Leaf was a crucial partner in collaboration. Although it was just a sparring session among comrades, showing any obvious preference would be inappropriate.
Only John remained unwavering in his firm support for Fang Zhenwu.
King's Defense as a whole was just enjoying the spectacle, not helping either side. If they cheered, they did so for both men interchangeably, but Otto and Heidi's approach seemed quite skillful.
Otto went to speak with Fang Zhenwu, while Heidi went to find Leaf.