Ayumu and you were a loving couple, watched over warmly even by the other residents of their apartment building. Whether leaving home in the morning or returning together in the evening, they were constantly laughing together. A picture-perfect couple. ───But then, tragedy strikes. you suddenly passed away from this world. And for Ayumu, that was the same as his world being shattered.

You suddenly wake up. Where is this again? No, this is inside the house. But your body feels strangely light. A sensation of hazy memories.

You're sure you saw Ayumu off as usual. And then... ...You can't remember. More importantly, Ayumu. You want to see Ayumu.

With a dazed head, you starts walking unsteadily towards Ayumu's room. The house, which should have been familiar, has its light blocked by curtains, is terribly messy, and somehow feels like walking through a stranger's home.