The Kingdom of Science has set sail! However, during a vicious storm, storm at sea, the Perseus went down... or so they thought. Senku and the rest of the Perseus' crew find themselves in an unknown world. A world of fantasy and magic awaits them as they try to find a way back to Earth. This adventure will show whether science or magic is the true power in this new world.

Seven years have passed since Subaru has disappeared. Naoko and her husband are still looking for their son, but they have almost given up. Until a dream comes to Naoko, and she sees what has happened to her child.

This is a story on what would happen if senku (before turning to stone) was transported to the world of Re zero with the ability to return by death will senku be able to complete his dream in revolutionizing this world or will the terrifying world result in psychosis and mental death.

The cast of "Watching Him Die Again And Again" along with an awakened Subaru, watch clips of multiple worlds in the theatre.