Tsuna didn't even look up as Mukuro appeared in his room (and he does mean appeared, apparently none of his guardians knew the meaning of doors), too busy trying to do his homework. He was sleep deprived and stressed out over the incoming test that was coming up in biology, so you couldn't blame him for ignoring Mukuro.
Apparently though, Mukuro found a way to blame him.
So as Tsuna tried to ignore the illusionist and Reborn (who was smirking in his hammock the sadist) he got more and more frustrated with the point blank stupid reasons Mukuro came up with for why he was ignoring him.
What did cheese, the number 7, and tree leaves have anything to do with Tsuna's lack of attention on Mukuro??!!
Usually Tsuna had the patience of a god and then some, but he was sleep deprived and stressed (as mentioned before) and was just so done with taking the shit Mukuro was dishing out at this moment so when Mukuro said.
"Are you jealous i get more girls then you?"
He couldn't help but reply with,
"20 x 0=0."
The room became quite ad Mukuro and Reborn stared at the brunet, who continued working finally happy that it was quite again. The two aforementioned males didn't know what to say, they've never seen Tsuna retort to any provoking situation as he just did. Mukuro made a strategic retreat, still too shocked by the verbal slap down to actually do anything. Reborn could only pull down his fedora to cover his eyes as he said shocked. "Dame-Tsuna...."
---------------------
@goldenskarm i hope you like it! I saw one of your posts and just had go make a short little drabble off it! My head-canon is that Tsuna is a sarcastic little fcker when he doesn't have his anxiety pushing his voice down!
