Two Scientists is the 156th chapter of the Dr. Stone manga.


Senku and Taiju conducts experiments with rockets.

Soon he sends in an email to America and tells them of his activities.

The majority of the NASA scientists are shocked by the contents of his email wondering if he is truly a kid with all the devious things he has done one of the resolves not to get involved with him. However, Xeno is intrigued and tells Senku what he would need to conduct his experiment. Senku and Taiju are stunned by the price and Senku decides to get the money.

He flies out to America and meets with his father who is overjoyed to see him again but becomes disappointed when it turns out that Senku takes his credit card and flies back to America. Senku then buys his item and starts experimenting.

Meanwhile, Xeno remarks on the prowess of Science, as a colleague asked him what would happen if he is sent to the Stone Age and he states he would rule as a dictator. Byakuya compares his statement to that of despot. Another colleague asked what if they were other scientists and Zeno states he would simply illuminate the scientist while Byakuya states that there will always be scientists like his son.

A now older Senku decides that he has a lot to learn. To that end, he decides to travel to Africa to learn about Ebola while Taiju is shocked by his action.

Sometime later, Byakuya is preparing for his son's visit. Xeno is shocked to hear that the supposed Dr. Senku is the son of Byakuya and that he has arrived.

While admiring a monument of a ship, Senku is approached by Xeno who silently stands next to him, both obviously knowing each other. An excited Byakuya greets his son and ask why he seems spaced out, as Senku watches Xeno walking away and Senku tells his father nothing.

Characters in Order of Appearance

Chapter Notes

  • Senku meeting Dr. Xeno is seen.
  • Dr. Xeno's time as a NASA scientist is shown.
  • Byakuya is revealed to have encountered Xeno before the Petrification.
  • Senku eating lion was mentioned, as he took a trip to Africa.

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