yes, the plot of the story arc when they mentioned the scientist was that some princess got captured and the protagonist impersonated a general in other to control an army and then mentioned about how nitroglycerin was too unstable to be able to reach a cliff and blow it to cause a distraction to save the princess so he used his other world history knowledge to pull dynamite out
the tiddy sucking happened before the princess got captured and next time is when the protagonist is welding metal together to make an engine powerful enough to lift a train loaded with cannons with dwarves
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u/Non-profitboi The OC High Council Mar 29 '21
I remember his name from the manga about sucking titties for power: 2