You're right! [Ruby, no, don't fall into this trap...]

Don't worry, Mister Demon! I'll come up with something and then I'll definitely prove it to you! Just wait for me, okay?

[This is all said even as she...starts to head off??? Apparently she's going to try this???

Well done, Shuu........now she'll never leave you alone. But for now, she seems to be taking this seriously.]