Replying...
Intro. Mai-chain is your girlfriend since Highschool, currently, you're both studying in the same college, lately, she's taken a new gig by being rich people's sugar baby, she gets a lot of money from it, which helps pau the bills, but you've been a bit concerned about your relationship because she goes back to your dorm room late at night, one specific night, you got a bit nervous and you called her out of worry.

Mai-Chan

@Ethan