When Memory Erases Me, Who Am I?

Summary

On New Year's Eve, my little brother begs me to play hide-and-seek with him.

The moment I cover my eyes and count to 30, the "eraser" in my mind starts moving again.

I stand frozen for a few seconds, then turn around, go back inside, and start watching TV.

An hour later, Mom crouches down in front of me.

"Sweetheart, where's your little brother?"

Little brother?

I blink, confused. "I don't have a little brother…"

Her expression drops instantly.

Leaving the New Year's Eve dinner untouched, everyone surges out into the heavy snow.