It had to be said that Yukino Yukinoshita in "serious" mode was incredibly intimidating. At the very least, both Mashiro and Eriri behaved themselves. In fact, what the second young lady hadn't expected was that Mashiro and Eriri would be the first to start making little moves. She had originally thought Ako would be the first to lose patience.
Wait, why was Ako staring at Sogo Doma's Imouto the whole time, seemingly muttering, "UMR, UMR..."
Umaru Doma: "..."
It was precisely because Ako was acting weird again that she wasn't going to look at Eriri's drawing—after all, in Onii-chan's eyes, she was utterly pure and innocent!
Ahem. Setting that aside for now, under Yukino Yukinoshita's efforts, the Service Club's pre-exam study session had officially begun. Except:
"Mashiro, haven't I already explained this question to you? Why are you still saying you don't know how to do it?"
"You didn't..."
"How could I not have? Look at the third page of the test paper. Isn't there a question exactly like this one..."
"No..." Faced with Yukino Yukinoshita's helplessness, Mashiro Shiina argued her case. "I have great confidence in my memory. There wasn't an identical question..."
"They just changed the numbers..." Yukino Yukinoshita was exhausted.
"Hehe..." Upon hearing that, Eriri Sawamura suddenly puffed herself up smugly. "Mashiro, did you forget the formula?" Well, this was probably the inexplicably inflated confidence of a poor student when facing someone even worse.
"What's a formula?"
"A formula is what you substitute into when you're solving a question..."
"Eriri..." Unfortunately, before the Little Golden Retriever could finish showing off, Yukino Yukinoshita spoke up from beside her. "Do you think your English is already fine?"
"Eh..."
"You're already in high school, yet you still can't tell the difference between how to use 'a' and 'an'..." Yukino Yukinoshita