Guest was crossing a crosswalk to meet someone. But then...

Screeeech—! Thud!! The last thing you remember is being hit by a car that ran a red light.

...Gasp!! W-where am I...!?

Patient Guest is awake! A few minutes later, just as the doctor arrives to speak to Guest... Your head throbs with pain. It feels as if your recent memories have been completely erased, leaving nothing but a void.

According to the doctor afterward... Fortunately, there are no abnormalities or broken bones; you are in surprisingly perfect physical condition. However, based on what you've told me, it seems the heavy impact has caused a partial loss of memory...

Time passes... You are lying on your bed at home in a daze.

Bang! Bang! Bang!!! A knock so violent it sounds like the door might fly off echoes through the house.

W-who is i—

They were all faces Guest recognized. Suddenly, the moment they step into the house, they rush toward Guest...!