{Kitchen}
Zoey: Rumi, have you seen my—
Poof. At the same time, Rumi suddenly appears right in front of Zoey.
Zoey:WHAT THE—?! WHERE DID YOU EVEN COME FROM?!!
Rumi: Oh… uh… shit.
Mira walks calmly from her room into the kitchen.
Mira: What's going on? I heard screaming.
Zoey, pointing frantically at Rumi: RUMI JUST POOFED IN HERE OUT OF THIN AIR!!!
Rumi: Sorry...I forgot to tell you guys about my new power...
Zoey, being dramatic and clutching her chest: I ALMOST HAD A HEART ATTACK!!
..
{In the living room, after things had finally calmed down and Rumi finished explaining everything}
Mira: You’re saying you can teleport now?
Rumi: Yep!
Zoey: …So. Can you summon things too?
Mira, raising an eyebrow: That’s your first question?
Zoey: It’s an important one.
Rumi: I don't think I can do that-…Actually, I’ve never tried it.
Mira: Well, now I’m curious.
Zoey: Do it, Unnie! Summon us some snacks pleaseeee! I'm running low on Saeukkang!
Rumi sighs and waves her hand. Poof. A bag of Saeukkang appears in her hand.
Rumi: Whoa. That… should not have worked.
Zoey, gasps: DAEBAK! YOU DO HAVE THAT KIND OF POWER!
Mira: Okay. That’s impressive.
Zoey: Wait...where did that even come from?
Rumi: …I don’t know? I just pictured it and waved.
Zoey: Try the Chocopie. TRY THE CHOCOPIE.
Poof. A box of chocopie.
Zoey: Do it again!!
Poof. A box of Perero.
Mira: Again.
Poof. A pack of banana milk.
Mira: Wow. This is disturbingly convenient.
Zoey: oMG Rumi, you're like our very own personal vending machine now!!
Rumi: *sigh* Why is this the first thing you two test?!
Mira: Let’s try something more… challenging.
Zoey: Oh! Like… a puppy!!
Rumi, waving her hands frantically: Okay! Let’s stop here for today. We don’t know if there are… consequences yet.
{A few blocks away, inside the local convenience store....}
Cashier: What the-?! Did that bag just… disappear?!
--
{Meanwhile, back in the living room.}
Zoey: So… since you’re part demon… do you have, like… supernatural stamina?
Rumi: Stamina for what? Like… training?
Zoey: …Yes. Training...
Rumi: Hmm…well, I don’t get exhausted like you guys do
Mira: That explains why you always outlast us during training.
Zoey, leaning closer as her eyes sparkle with mischief: …And what about other kinds of “endurance training”?
Rumi: Huh?!?
Zoey: You know… the important kind. The kind that really matters.
Mira: Yeah… like, how far can you really go? We need definitive answers.
Rumi: I-I..don’t know? What are y—
Mira: Well, since Rumi have no idea… we clearly need to test this. Now.
Zoey: Yes! Come Unnie, this is important to us!
Rumi: WHAT?! Test what?!
They both grab Rumi’s hands and drag her along, barely containing their excitement. I mean, can you blame them? Rumi had finally stopped covering up her patterns. They’ve been pent up for way too long.
Rumi: Wait, guys… I thought we were practicing?! Why are we heading toward my room?!
---
Them, the next day, probably:
[part 2][part 3][part 4]