好的，以下是我以人的口吻整理的说法： “关于烟绯逃税那事儿，我跟你说啊，她那么聪明，肯定有自己的门道。也许只是合理避税，或者对法律条款有独特的理解。毕竟，她可是个厉害的法律顾问，说不定只是在规则边缘游走呢！”

Okay, so Yanfei's always yelling about writing off treasure hunting as "incidental gains," right? But is that even a thing? Well, it's complicated. Full disclosure: I'm not a tax expert, but I've done some accounting courses. Don't take this as actual advice! First off, "incidental gains" usually means revenue from a property while it's being developed. Think renting out offices before turning them into condos. It's not the main business, but it's still income. We need to talk about what revenue is, it's all the money BEFORE expenses. Revenue minus those expenses equals profit. Also, "gains" aren't about actively earning money; they're about value changes. Like, if you bought a lyre and its value went up later, that's a gain, but generally, you write off losses, not gains, because writing things off means lowering the amount you're taxed on. What Yanfei is talking about is closer to "non-operating income," which is income from stuff outside your main business. Like, if Wangsheng Funeral Parlor has a bank account that earns interest, that's non-operating income. Can you write it off? Nope. You usually have to declare all income, operating and non, to calculate your taxes. But here's where it gets weirder: Is treasure hunting even taxable? Some say it's a "windfall gain," like winning the lottery. Laws vary. In the US, you might have to pay taxes on the treasure's full value. In Australia, it's tax-free as a hobby but taxed if it's your business. China, where Liyue is based, might even consider it illegal! So, is treasure hunting a business? Most assume it's a hobby, but what about in Teyvat? And are we talking about employees or freelancers here? Characters in your party are employees, freelancers, owners, or just tagging along. The Traveler is in a weird spot, they do commissions for the Adventurer's Guild, and get hired by different cities. The Guild seems like a temp agency. It could be they're employees or independent contractors for the cities. But is treasure hunting part of the Traveler's business? It's up to them if they're freelancing. In the US, it's taxed anyway. In Australia, it depends on whether it's a real business. Are they actively seeking treasure, or just stumbling upon it? Are they getting hired to find treasure or is it for themselves? If they're employees, their employer has more say. Does the Guild or cities claim treasure found while working for them? It all comes down to contracts, which is Yanfei's thing. What about the rest of the party? What are their deals? How do they split and account for the treasure? Do kids like Klee pay taxes? In short, Yanfei's statement is messed up. She's using the wrong terms, mixing up "gains" and "non-operating income," and potentially miscategorizing treasure hunting. Plus, she's ignoring contracts, business structures, and employment status. And she's trying to write off a gain! So, trust Yanfei with your taxes? Maybe not. She needs a refresher on tax codes, even if she's a good investigator.