>>2520787>moonlighting as another vtuberThat was people thinking she and Flare from Hololive were the same person because they have similar voices (they don't).
Honestly, the civil servant-rrat sounds most plausible since it was known from the start that her roommate was an OL, just that she kept her actual workplace a secret to the others. Then tax season came and the increasing revenue from memberships and superchats as she got more popular became impossible to sweep under the rug, forcing her to choose between her stable employment and a fickle donation-funded streaming career...