Let's go, Onee-sama said. The ticket gate was here.
However, Sachiko-sama walked further and further to the north. Continuing walking, she would get out of the north exit. In order to ride on the train, however, they had to pass the gate and wait at the platform for the train.

Yumi decided to chase Sachiko-sama for the time being. Then she realized.
Onee-sama's hands were empty.
No way, Yumi thought, but Sachiko-sama had already walked down the stairs. Yumi also caught sight of a black car, waiting slightly away from the north exit roundabout.
Without mistake, that car was the Ogasawara's home car. Though it is a home car, the driver was not anyone in the Ogasawara family, but a driver.

"Why are you so surprised? Haven't I said that we are going by car?"
Sachiko-sama turned back and said to Yumi, whose brain was stuck due to the unmatching reality.
"No, I heard nothing of that."
Yumi had just learnt of it.
However, Sachiko-sama looked very confident, and Yumi started to become unsettled.

"I have said so."
"But"
Yumi didn't heard of it, that was the truth. Yumi could never say "I have heard it," just to save Onee-sama's face.

"I have said so."
"Never heard of it."
Neither side would give way.
Then which side was telling the truth?
No, it was too early to conclude so. Both sides were holding the unwavered belief that her standpoint was right.

Speaking of that, the same thing happened once before. In the treasure hunt event, the two had argued about how deep Yumi had dugged for the hidden card. At that time, Tsutako-san intervened, and the argument was somehow cleared with everyone satisfied, even though the mystery was not solved.
Unfortunately, there was no friend here now to step up and make a judgement.

(Anybody...)
Yumi looked around, and her glance met the driver, who was in standby mode in the black car's driver seat. Yumi hastily gave a slight nod.
There was no way the driver could untie the tangled web of misunderstanding. Yumi had to put her own effort here.