Give it a test.

To do as Laira wishes, you head outside and begin moving about. It's as she said. You can move easily, as if you hardly got an upgrade. You can still feel it of course, especially where it's tightly bound to your body, though it's not at all obstructive. Once you reach the path, you draw your blade from its sheathe. It glows a faint pink as the girls exit from the smithy behind you, though Laira remains in the door, perhaps waiting to go get change before she heads out.

Either way, you swing, and it feels great.

Then your eyes catch Peony strolling towards you. She brushes her hand over some tall-growing flowers beside a nearby building, almost like a mother petting the head of her child. They move, and you can't tell if it's with a breeze, or on their own, but she continues happily along the road as her gaze remains locked upon you. Her expression is warm and affectionate as always. The closer she gets, the more she inspects the new attire you're wearing.

She stops a short distance away and stares.

"Hello, Peony," says Yin as she skips down the steps from the shop. "Are you well?"

The dryad nods. "Yes, but... what is it that you're wearing, m'lord?"

"Oh, it's the suit of armour made from all those materials, remember?" you reply. "It's finally done. How do you like it?"

Slowly, she approaches you, and she does so oddly. Then she places a careful hand upon your chest. There she remains for a long moment, staring seemingly into nothing, but then her eyes slowly flicker up to meet yours. "It feels warm," she whispers. "And safe. I've never felt something like this before. Or rather, maybe I have, but not from something you've worn. This is---Yes, I understand. Much of this contains wood from the Elder Tree. I can feel its embrace. Or perhaps it's the embrace of those who made it. I'm not sure."

You look down, and finally you place a hand over hers to hold it firmly against your chest. "It makes sense you'd feel something special, given the material. This is fine, right?"

"It's more than fine." She smiles even wider. "In a way, you carry with you a part of me. A part of the world."

"I think I get it. I'm glad you like it."

The other girls smile. Delphi flutters over with her arms crossed. "I think I get it too. As a pixie, I feel a weird connection to that stuff."

"You should," says Fava. "Though nothing like a dryad would."

As Peony remains there, she brings her head down to push her cheek under your neck. And then her other hand. She moves in closer, pushing gently against you. Her eyes close, and you wonder for a moment if she's going to drift away to sleep right there in your arms, if that's even possible. It's a pleasant feeling, so you don't mind, yet during this lengthy silence, you hardly notice what's happening. It isn't until Peony is halfway into your body that you notice something is strange. No longer is she just embracing you. Now, she's actually falling inside of you? She sinks deeper, and then she disappears as she makes a sudden step forwards.

You gasp and clutch your chest, though the strange sensation was psychosomatic. There was no real pain, or any actual feeling.

"Peony?" Delphi calls out. "What happened?"

"Where'd she go?!" Laira shouts out from the doorway.

You look down over ourself, unsure of how to react. But then, behind you, Peony steps right back out. You turn to face her, and she has tears in her eyes, or whatever it is that leaks from the face of a being made entirely of nature. Perhaps it's a trickle of the most pure spring water rolling down her face.

She then throws herself into you again, but this time, it's a proper hug. "I've never been more happy in my entire life, my love~!"

"Wh-What happened?" you stutter out, still a bit too surprised to properly think.

Suddenly from atop the shop, a ghostly visage comes down with a wispy tail fluttering behind. Mela floats around the two of you and inspects the situation closely. "Uhm, I apologize for eavesdropping, Mr. Warren, but I have been watching for some time, and I think this is an absolutely fascinating occurrence I would like to try and explain."

You look to Mela. "Oh?"

"Indeed. Because this suit of armour is carrying the pure presence of an Elder Tree, perhaps to all or only Peony, you are a tree. In a sense. Dryads may only exist within a certain distance of any tree, and they may also enter them as if they were water, or perhaps a doorway may be a better comparison. This means that as long as you are wearing this, or perhaps even if it is simply nearby, Peony may go anywhere with you, if that is what is needed."

It's likely Peony already came to this conclusion, as she doesn't react. She simply continues to hold you firmly. You're not sure if she'll ever let go.