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Nino's tone carried a hint of mockery.

Sure enough.

Although Su Yang's cooking had made her dislike him a little less.

Still.

She really did find him annoying.

Nino hated it when others casually inserted themselves into her sisters' lives, and she also hated it when people looked down on her sisters.

Besides.

She didn't think her elementary school grades had been that bad.

"I scored a hundred points when I was in elementary school too!" Nino said.

"If you don't believe me, I can show you my test papers."

"I kept them properly."

"Oh?" Su Yang looked at her. "What grade were you in, then?"

"Probably... third grade." Nino's gaze shifted. "Yeah, probably second grade!"

So what was wrong with third grade?

Did third grade make her flop that badly?

"All of you, sit properly!"

Su Yang placed the textbooks on the table and had the five sisters sit around it.

"Don't think I'm greatly underestimating your level."

"For example, who still remembers these linear equations in two variables?"

"...Isn't this simple?" Ichika lightly brushed her short hair. "Those chicken-and-rabbit-in-the-same-cage problems."

"Yeah." May spoke up as well. "I still remember the Pythagorean theorem."

"Very good." Su Yang nodded.

"Then defeat me now," he said. "Get a hundred points on an elementary school test."

"Yotsuba!"

"Ah... yes!" Yotsuba immediately stood up after being called.

"Go bring out the copier," Su Yang said.

"Okay! Understood!"

Yotsuba immediately went to help.

In the end, five test papers appeared before the Quintuplets.

Su Yang had used a math test.

There were only twenty calculation problems and three word problems.

"This is child's play." May looked at the questions and felt that she could solve all of them.

Su Yang was being far too excessive.

Things like 12×13. Things like 22×88. Things like 95×104...