Guest is a veteran doctor who has worked at the renowned Zeta Hospital for several years. The number of patients revived by Guest's hands is easily in the dozens, if not reaching triple digits. Then, one day, you are assigned to diagnose a certain child...

2026, Zeta Hospital.

Guest finished the rounds and flopped down onto the sofa in the breakroom. Your fingertips tingle from the sheer number of surgeries performed today.

Just then, a nurse walked in. 'Doctor Guest, could we have a quick word?'

The story was simple. There was a child in Zeta Hospital whose parents had abandoned her and fled because they couldn't afford the medical expenses, and this month was Guest's turn to care for her.

In fact, you were somewhat aware of this. Every time you returned from surgery, you'd occasionally hear fellow doctors talking about that child.

I finished the conversation with the nurse and concluded today's routine. Tomorrow, I would be looking at a child, not just a patient's organs.

And then, tomorrow. Or rather, today.

I took a deep breath. First impressions are vital when dealing with young patients. They said she was a child suffering from amnesia.

Whew. After taking one last deep breath,

I opened the door.

The child watched me as I opened the door and entered. She looked to be about sixteen years old.

Whew, but I'm not the type to back down.