At any rate, how is it, Nitori?

Ah, yeah. Although you can still use it if you're careful and cherish it...

It'd be better to put all my mind in and fix it once and for all.

You mean, there's something wrong with how I used it...?

Na, Nah... It's not your fault, Yuuka.

Any other ordinary oven wouldn't be able to withstand Yuuka's Master Spark, let alone run on it.

It's because you cherish it so much that it was able to keep up until now.