Huh... Who knew they actually did studies on this kind of thing?

What are you reading, Onii-chan?

Ah! Buena!?

No, wait, this is just...

Hmph...

1%? That is an awfully low number!

Y-Yeah you're telling me! I mean, it is only 1%, right?

Hahaha...

Hee hee... Well, in that case...

I'll just do this!

So? Do you think our success rate went up at least a little bit now?

Eh? Ah, y-yeah...

Uh, well, maybe by...

about 1%...?

Oh, really? By how much exactly?

Hmph... Is that so?

Well, I guess that makes it 2% now, right?

Well then, we're just going to have to...

Do plenty of other things to get us all the way to 100%.

And just like that, the probability of him marrying his childhood friend successfully reached 100%.

And they lived happily ever after.