High School Prodigies Have It Easy Even in Another World!, Vol. 2

After starting an economic revolution in the city of Dormundt, the high school prodigies are up to their eyeballs in money and resources. They've also managed to save little Roo from a life of slavery, so they've earned a well-deserved rest. That is, until "Silver Knight" Inzaghi decides to attack Elm Village, pillage its newfound wealth, and abduct poor Lyrule as a concubine for the feudal lord. With the greatest minds and talents known on Earth, this dream team is now set to revolutionize the other world!!