Synopsis

The chapter highlights the protagonist's genius by recreating a microscope from descriptions, enabling enhanced observation. He also secures a lucrative deal for his ondol heating system with the Bota Merchantry, skillfully negotiating favorable terms after a visit from the Gongson family. Furthermore, it's revealed that the merchantry is an evolution of a previous escort establishment he's had dealings with, and finally we see the introduction of the Gongson sisters.