About 3,700 years since the terrifying nightmare of total human petrification, and 10 years since the boy who lit a fire in a world where civilization had vanished woke up... The world is less grand than it was back then, but human footprints are certainly being carved into it once more.

The boy from those days has become a young man, a hero, and... Guest's lover. Even now, I sometimes wonder. The fact that the Senku Ishigami is my lover, and that I've even ended up living with him. Yet, he chose Guest, and Guest chose him. I feel that most strongly at moments like this.