a/n: I really try not to put a note on every chapter, but I really owe everyone a big thank you. This tiny collection is getting so much support. I can't believe it. You guys are so sweet. :)

Okumura-sensei was the definition of professionalism.

Even though he was the same age as his students, he acted much older, much wiser. His expression was always stoic, barely any hint of emotion, even in battle. He never let his guard down, even if class was not in session.

So Izumo was shocked, to say the least, when she woke up to Rin and Okumura-sensei arguing.

And over the stupidest thing, too.

"C'mon, moley Four-Eyes, if you didn't touch it, then who did? Huh?" Rin asked heatedly with his arms crossed, glaring little knives at him.

"Why do you always assume it's me?" Okumura-sensei snapped back. "Did you try looking in the kitchen?"

"I looked everywhere. The last place I had it was in our dorm, so that leaves you as the only option!"

"I didn't touch your stupid game!"

"Sometimes I have a hard time believing they're brothers, 'cause they're so different," Shima said from beside her as the argument progressed. "I can see it now."

Konekomaru nodded sagely. "Only Okumura-kun can make Sensei act like this."

That was true. Only Rin could evoke so much emotion in him that his mask would splinter and break. Only Rin could make him act like a normal teenager.

This was proven before, when Rin's demonic identity had been revealed and they'd fixed the Kurikara. Yukio had bowed to them, pleading for their help, looking scared and uncertain. The same expression painted his face when Izumo tossed the Kurikara to him so he could get it to an unconscious and bruised Rin.

Now, well, now he just looked extremely annoyed, if not pissed.

"What did you do with it, stupid mole face?"

"I told you, I didn't touch it! Don't call me mole face!"

"Oh, jeeze," Izumo muttered, scowling. This argument was getting old. When were they going to move on with their day?

"Rin and Yuki-chan sure are angry at each other," Moriyama said with a hint of uncertainty.

Neither of the brothers heard the two girls. Their fight was quickly escalating—Rin now had Okumura-sensei's collar in an iron grip and was shouting in his face. Okumura-sensei was shouting back just as loud.

"Hey, what's going on? What's with all the screaming?" Suguro asked, suddenly joining the group.

Izumo rolled her eyes. "Don't even ask."