The apprenticeship contract is what makes the most sense IMO. It would cover her being employed there for a while, and why she can't leave. If her company is as vindictive as she alludes, they would absolutely sue the shit out of her for all the penalties they can.
And I recall her mentioning one time she had a terrible day because "the numbers they gave me didn't add up and something was wrong", and after getting back to her boss she was correct she'd been working off incorrect information all day long. Based on talk like that, I presume she does some kind of technical field like DBA or something. Especially if you couple this with the fact all the Phase girls talked about Airi being the defacto IT person at the start when Gen 2 premiered.
It was better than that. Someone in chat said the way she was sitting it looked like she was going to have a nip slip. And she said "Do you want me to move? Or does that get you going?" Followed by a moment of silent self cringe, and "I'm going to get in trouble for that." It was great.