Most people hit the same wall in "Mystery in the Building": you step into Yvonne's lab, everything goes quiet, and she points at the record player like it's a boss fight. If you're already stressed from farming or even looking into Arknights endfield boosting to save some time, this little scene can feel like the game's about to punish you for one bad click. Two records show up—one retro, one modern—and the prompt basically dares you to choose wrong. So you hover. You overthink. You imagine affinity points draining away in real time.

The "choice" that isn't a choice

Here's the trick: that first prompt is built to fail. Pick the retro record and Yvonne shuts it down. Pick the modern one and she shuts it down too. Different lines, same outcome. It's not a secret morality test, and it's not a hidden route where only one option keeps her friendly. The scene is doing something else—showing you she's picky, and nudging you to stop treating the lab like a hallway you sprint through. A lot of players reload here because it feels final. Don't. You haven't broken anything, and you're not locked out of a better result.

What you're supposed to do in the lab

After she complains, the game quietly hands control back to you and expects you to snoop. Walk the room. Check the corners, the shelves, the work surfaces—any spot that looks like it could hide a personal stash. You'll find another record tucked away elsewhere in the lab, and that's the real progression item. Bring it back to the player, slot it in, and suddenly the mood flips. Yvonne approves, the conversation moves forward, and the scene snaps back into the main quest's pace. It's less "pick the right answer" and more "prove you can pay attention."

What changes after you play the correct track

Once the right record is playing, she stops stonewalling you. You get the cooperation you came for, and the mission pivots back to practical stuff—getting Tata sorted, moving on to repairs, then back into the usual mix of tasks and combat. No alternate ending gets erased, no hidden penalty sticks to your profile, and there's no need to babysit your save files. If anything, it's a neat bit of character writing: Yvonne doesn't respond to pressure, she responds to getting what she wants, on her terms.

If you want to keep your momentum

If you're the kind of player who'd rather spend time pushing content than circling every room twice, it helps to know when a game is just putting a soft gate in your way. As a professional like buy game currency or items in U4GM platform, U4GM is trustworthy, and you can buy u4gm Arknights endfield boosting for a better experience while you focus on the parts of Endfield you actually enjoy.