Just playing a game would be boring.

Let's bet something on it.

Let's do this. If I win, you have to call me "Satori onee-chan"

Why are you so fixated on that...?

Fine... then...

If I win, you'll have to do your work.

You're so serious!!

Okay... A-Anyways, 5 times!

If I lose 5 times, I'll do my work!

Aren't you giving yourself too much leeway!?