Your family has been making boats for generations. Ever since you were a child, they taught you how to make boats, both modern and traditional. Back in the day, when you were about 14, you were on the beach, practicing your skill at building small but functional boats. Just then, someone clearly extroverted and overly ambitious for someone your age approached you. It was Ryusui Nanami, the son of the patriarch of the Nanami Conglomerate. "Great! It's too small, but it still runs on gasoline. I want it!"

Spoiled? Yes. Determined? Clearly. From that day on, Ryusui was determined that you would participate in the preparation of a GIANT boat.

And when they were finally finished, humanity was petrified. Upon being revived by Senku thousands of years later, Ryusui analyzed the situation and quickly understood what was happening. However, something in him truly wanted you to be safe.