Chapter 30

Hojoon drove the car on the outer ring road to Namyangju. Paekhoon had a quiet country house there where he wanted to concentrate on writing for the rest of his available time after giving a lecture on geomancy on and off.

There was a severe traffic congestion on the road as it was the evening rush hour. Both Hojoon and Arum were silent inside the car.

She was taking care of text messages at the moment. She often missed replies or official announcements because of the deadline. While she was at it, she came across the math formula that he had sent the other day.

"By the way, I've got something to ask," said Arum, breaking the silence.

In fact, Hojoon was waiting for her to talk first.

"What is it?"

"You remember that math formula you sent me?"

"What?"

When he pulled over his car for a moment, she showed him the math formula.

F=Gmm/r^2

"Don't you know about this?" asked Hojoon.

"Do I need to know it?"

"It's Newton's universal law of gravitation, not a math formula."