Chapter 27
The Day We Forgot.
Aira couldn't sleep.
The notebook lay open beside her.
The sentence was still there.
The seventh day is waiting for you.
She had spent the entire night trying to remember.
Nothing came.
No station.
No train.
No mysterious door.
Only a strange feeling that something important was missing from her life.
By morning, she found Ren sitting outside the café.
He looked tired.
“You didn't sleep either.”
“No.”
He looked at her notebook.
“Did you remember anything?”
Aira shook her head.
“Nothing.”
Ren was quiet.
Then he said,
“Maybe we shouldn't look.”
Aira looked at him.
“Why?”
“Because Mika said you chose to forget.”
“That doesn't mean I should stay ignorant.”
“Maybe you had a reason.”
Aira stared at him.
“What if the reason was you?”
Ren didn't answer.
They sat quietly.
Then Aira noticed something on the table.
A small silver key.
Her heart stopped.
She knew it.
It was the same key Ren had carried beneath the station.
But she had watched it disappear.
Aira picked it up.
“Where did you get this?”
Ren shook his head.
“I didn't.”
The key was cold.
On its surface was a tiny engraving.
DAY SEVEN.
Aira closed her hand around it.
Suddenly, a memory appeared.
Rain.
A station.
Ren is standing alone.
Aira ran toward him.
She heard herself screaming his name.
Then another memory.
Ren was holding the silver key.
He was crying.
“You can't come with me.”
Aira's heart began pounding.
She closed her eyes.
More memories came.
The seventh platform.
The train.
Mika standing beside the tracks.
The mysterious man.
And Ren disappearing into the light.
Aira opened her eyes.
“Ren.”
He looked at her.
“You disappeared.”
His face went pale.
“What?”
“On the seventh day.”
Ren stared at her.
Aira remembered everything.
She had followed him to the seventh platform.
The station had demanded a sacrifice.
Someone had to remain behind.
Ren had chosen himself.
But Aira had refused to let him go.
She had made another choice.
She had given up the memory of that day.
She had rewritten the ending.
She had saved Ren.
But the station had never truly accepted the sacrifice.
It had only postponed it.
Ren looked at her.
“You remembered.”
Aira nodded.
“You were going to disappear for me.”
“I didn't want you to remember.”
“You should have told me.”
“I was afraid.”
“Of what?”
“Of losing you.”
Aira's eyes filled with tears.
“You almost did.”
Ren looked down.
“I know.”
She reached for his hand.
“You don't get to decide alone who gets to stay.”
He looked at her.
“I know.”
The silver key began glowing.
Aira stood.
“Where is the seventh platform?”
Ren looked toward the old station.
“It shouldn't exist anymore.”
Aira closed her hand around the key.
“Then why did it come back?”
Neither of them answered.
A train whistle echoed through the city.
Aira and Ren looked at each other.
The sound came again.
But this time, it wasn't coming from the station.
It was coming from somewhere beneath their feet.
The ground trembled.
A crack appeared across the pavement.
Aira stepped back.
Ren grabbed her hand.
The silver key slipped from her fingers.
It landed on the ground.
A hidden door appeared beneath it.
Aira stared.
The same crescent symbol was carved into the door.
But underneath it was something new.
A single sentence.
ONE OF YOU MUST REMEMBER.
Aira looked at Ren.
“We both remember.”
Ren shook his head.
“No.”
He pointed toward the door.
“Maybe that's the problem.”
The door began to open.
And from the darkness below came a voice neither of them had ever heard before.
“Welcome back.”