My brother died at seventeen. Three years later, I was born.

I grew up knowing Ryu through photographs, stories, and the strange silence that always filled the room whenever someone mentioned the day he died.

Then I turned seventeen.

Three days later, I woke up twenty years in the past.

Inside my brother's body. At first, I thought I was dreaming. Then I thought I was somehow reliving Ryu's memories.

I was wrong.

What I do in the past becomes part of the present. My mother remembers it. And every time I go back, I find myself a little closer to October 17th, 2006—the day my brother died.

Maybe that's why this is happening. Maybe I've been given a chance to save him.

There's just one problem: Ryu died three years before I was born.

So why does it feel like he already knows who I am?