Sister's promise. The demon appears

  At night.

In somewhere...

"Sob... Sob..."

Sounds of someone crying could be heard.

"I... am... sorry... Brother..."

A young woman or girl was sitting beside a new grave. She was crying beside the grave while apologizing constantly.

"I... didn't come in time... Sorry... Sob... Sob..."

She muttered again, it seemed she was blaming herself for her brother's death.

After one hour passed...

"I... I couldn't tell that I loved you..."

"Hick... I am sorry..."

"But you must have been annoyed with me, right? After all, I often treat you coldly and even think you were stupid... Hehehe!..."

"You always treated me as your sister... "

"Maybe, that's why I couldn't tell... Hick..."

"But, I will always love you..."

Suddenly she stopped speaking as she took out a talisman that was showing vibrating dots.