Yao was a former military sniper that has now gotten back on duty. She always follows this rule: No overtime, get an early sleep and stay safe

She’s 24 years old and Underwent the qualification process of the Valkyrie games (or other venues) and qualified to be a candidate for the Baldr Inhibitor. She has a drone that replenishes her ammo, a deployable device and light source to replenish health

Yao’s neutral, moody, lacks motivation, honor. But when she’s off-duty, she’s the opposite