The surroundings do include a lake!

And unrecognizable plants, late-summer weather, a sudden distinct absence of bugs, and the sun being over there now.

… What.

He's gonna back away from the weird lake thing now and– what.

There is also a little house right up at the edge of the lake, over there.

He's probably going to… look around to see where the hell he is first. Because this doesn't look anything like a park in a city. A big city. With large buildings. Like skyscrapers. And there's no-one around.

… Then he will make his way in the direction of the little house at the edge of the lake.

Would he care to knock on the door? It has one of those. How nicely normal of it.

That is indeed very nicely normal of the house. He in fact will knock on the door. And look rather confused by the fact that there is a little house by the lake.

He is a very confused humanoid. He's rather tall for one, too, and he has purple eyes.

Purple sclera, that is, and no visible iris.

A person opens the door. The person is short and has brilliantly yellow hair and dragonfly wings.

He blinks at Thario. "Why hello," he says, and, "What's your name?"

"I'm a bit lost," he says, looking at the person's wings rather distractedly. "… Um. I'm Thario."

The winged person beams at him. "Of course you're lost. Don't tell anyone else your name, don't run off, don't do anything that'd inconvenience me," he says. "Come in."

… So he does as such, walking in and looking quite frightened.

But he doesn't make a noise, because that might inconvenience the short yellow-haired person who can apparently force him to do things and so he'd rather not test just how easy he is to inconvenience.

His eyes go a bit more vividly purple, in case that's relevant.

The winged person doesn't even notice the eyes thing. "So where'd you come through?"

'Uh– what?' he doesn't say, still for fear of inconveniencing the person. "– Lake?" he does in fact say.

"Huh. Well. What are you good for, now I've got you?"

"I– math?" he tries, then quiets.

"Go on," says the winged person. "Oh, and pick a nickname."

"Nickname – does it need to be anything in particular, um, I usually go by–" He stops. "… I don't know what you need so I don't know what I can do."

"Just something you'll answer to that isn't your real name or overlapped with it," says the winged person.

"How much overlap isn't allowed, am I allowed letters and sounds the same or do I need to pick it totally without–"

"No syllables the same."

"… Purple?"

"All right. I'm Yellow, my other vassal is Promise, she'll be home any minute now."

He stands there quietly. Trying not to inconvenience the tiny winged person.

"Are you good for anything besides math?"

"… I can do languages? And I'm a Rhune, good at running, uh– I don't know what sort of thing you're looking for so I can't answer that properly."

"Well, I didn't exactly go shopping for you," Yellow says, "I don't have anything in mind yet, stop interrupting yourself when I ask you things."