Daiuso-ji (Horror), Weekly Short-Short Note, 759 characters

Deep in the mountains, there was a temple called Daiuso-ji, the Temple of Great Lies.

A temple where you can part with the lies that make you tremble every day.

I visited it on the day one year after my younger sister died. When I last saw her, I told her a lie.
"I'll come to see you again very soon."

I said it even though I was busy and had no intention of doing so.
My sister kept waiting for me in the cold entryway, and her condition worsened until she died.

The weight of that lie still tightens my chest.

"You have come to deposit a lie, haven't you?"
When I nodded, the monk brought a small box from the back.

"Please breathe into this. The lie will take shape and sink into the box."

As I gently breathed into it, I heard something moving at the bottom of the box.

The monk smiled faintly.
"If you keep your lie here, your heart will feel lighter. Please forget about the lie. If you strongly wish not to forget it..."

The monk left his sentence unfinished. He wouldn't answer my questions either.
I thanked him and left the temple. I felt as if the weight in my heart had lifted a little.

However, that night, I heard a familiar voice.

"Hey, you're coming soon, right?"
My body froze. It was my sister's voice.

The next morning, I rushed back to Daiuso-ji.
"My sister's voice..."

The monk lowered his eyes.
"Yours was a lie you didn't want to forget, wasn't it? Such lies always try to return to their owner. What kind of lie was it?"

"I told my sister I would come to see her soon, but I didn't go. What should I do..."
"That's simple."
The monk smiled broadly.

"Before the lie makes you suffer, you should make that lie the truth yourself."

"Make it... the truth?"
"Yes. You said you would come soon, didn't you? Then go. To your sister. Until you go, that lie will continue to torment you."

In the darkness behind the monk, the small box shook. A voice, clearer than yesterday's, leaked out.
"Big sister, you're late. Come here, quickly."

To go to where my dead sister is, that means...