---
The program on the TV changed.
Now it was a quiz show.
Colorful lights flashed on the screen.
Yuna watched it very seriously.
---
After a few minutes, I stood up.
I picked up my coffee mug.
Then walked to the window.
I cracked the window open a little.
The cold air slipped in.
Yuna immediately looked over.
"…Papa."
"Hm."
"Why did you open it?"
"To let the air out."
She watched me pull a cigarette from my pocket.
Then looked at the window again.
"…oh."
I lit the cigarette.
A thin trail of smoke drifted upward.
Yuna watched it.
Her eyes traced the smoke as it moved higher.
"…Papa."
"Hm."
"That smells."
"Yes."
"Why do you smoke it?"
I answered briefly.
"Habit."
She thought for a moment.
"…does it taste good?"
"No."
She immediately looked confused.
"…no?"
"It's bitter."
Yuna tilted her head.
"If it's bitter… why?"
---
I exhaled the smoke toward the window.
"Adults often do unnecessary things."
She stared at me for a few seconds.
