Quantum Technochampion π is a Heart-to-Heart in Xenoblade Chronicles 2. It can be found at Lv. 2, Mizar: Lower Deck on the Lower Level of the World Tree. Viewing this Heart-to-Heart is required to unlock the fourth level of Poppi QTπ's Overclock Battle Skill.
Zeke
I don't know what I was expecting in here but this jolly well isn't it.
Tora
Tora surprised too!
Insides of World Tree make Tora's head go all swirly-whirly!
Zeke
When it's even getting to Tora, you know it's serious business!
Poppi QTπ
No need for surprise. Masterpon lacking in many regards.
In particular, common sense level close to 0%.
Tora
Er, Poppi! It go without saying, but Blade should not diss Masterpon!
Poppi get very impudant since activating Qtπ mode...
She is difficult girl!
Zeke
Difficult? Didn't you make her, though?
Tora
Yes, in manner of speaking, but Poppi is result of work of three generations.
Actually, there plenty in Poppi that Tora not know or understand.
Poppi QTπ
Poppi's components contain elements from Professor Soosoo and Professor Tatazo in addition to Masterpon.
Poppi comprise hopes and dreams of all three.
Any one might be stronger at any given time!
Zeke
You're obviously a lot more complex than I gave you credit for, Popster.
So, hey, Tora...
Does that mean even you don't know everything she's capable of?
Tora
That right.
Basis of mode change function was laid down by Grampypon Soosoo.
So part of system core is sealed mystery, or "black box".
Zeke
Can't you, like, investigate?

Trust +200
Tora
Unfortunately no. Even Dadapon not able to fathom what going on in there.
That because the box have note on it saying "Do not open!"
Zeke
The...box?
I thought "black box" was some kind of fancy engineer term or something!
Poppi QTπ
You want to see?
Zeke
So, the box is in Poppi's stomach or something?
Why don't we open it and see?
Tora
No way! That might activate self-destruct mode of Poppi!
Zeke
S-self-destruct?!
You can actually do that?
Tora
Of course.
Grampypon thought self-destruct was hero's most daring and noble act.
So...best not tamper.
Zeke
Your Grampypon had some very strange ideas, Tora.
Are you OK with that, Poppi?
Having a bloody great bomb in your stomach, I mean!
Poppi QTπ
Oh yes. No problem.
Bomb is comparatively safe next to Poppi's other functions.
Poppi QTπ
Meh? What happen?
Zeke? Masterpon?
Why you suddenly make selves far from Poppi?
Zeke
Are you also in the dark here, Poppi?

Trust +200
Poppi QTπ
In the dark about functions?
Zeke
Right. Sure you've not got any hidden abilities kicking about in there?
Poppi QTπ
Let me see...
Function identified!
Tora
Oh, excellent! Let's see it, then!
Poppi QTπ
Woof, woof woof woof!
Woof woof? Grrrr... Woof woof wooooof?
Poppi QTπ
Woof woof woof woof Dog Mode woof.
Tora
Poppi! That mode is only for park!
Tora sealed Dog Mode so people not think Tora some kind of weirdo!
Zeke
Yeah...that is more than a little bit weird!
I mean come on, Tora. Why don't you just get a real dog?
Tora
Tora...not have time for real dogs...
Zeke
Anyhow Poppi, surely that's not the only ability you've got?
You don't have any hidden function we could use for battle or exploring? Something like that?
Even without Tora, you must be able to do a bit of digging around in that black box of yours, no?
- ↑ Voice acted as a weak "meh".
Gallery[edit]
Location of the Heart-to-Heart on the map.