After Shichibukai "Heavenly Yaksha" Donquixote Doflamingo left Totto Land in a frazzled state—literally frazzled, not figuratively—Charlotte Mousse became even busier.
First, he had to study and work under Vegapunk, the greatest genius scientist in the world. Although cloning Charlotte Linlin would have to wait, and there were no other major projects, that did not mean Candy Island's laboratory had nothing to do.
For instance, Vegapunk thought highly of the gyroscope Mousse had invented and spent considerable time and effort improving it. In addition to a mass-produced version that was cheaper and easier to promote, he had designed and handcrafted an exceptionally compact, refined special edition. Mousse, naturally, became its first beneficiary.
The previous gyroscope, which also served as an automatic drawing device and locator, had been heavy and bulky. Mousse either had to have Amon transform into its true form and hold it in his mouth, or carry it around in both hands, which was highly inconvenient. From then on, all he needed was to wear that custom-made "watch." Amon was finally free.
At the same time, Mousse had never neglected his daily physical training. Having a Doriki Value of no less than ten before even turning nine—his first test result after returning home—was already quite impressive. Yet rather than becoming complacent, Mousse trained even harder.
He knew full well that his current achievements came from scientific, diligent training that had made the most of his rapid growth period. He had not wasted it before, and now that he had seen results, he was even less willing to waste it.
Besides training himself, Mousse had also kept an eye on his younger sister Praline. The Drying Room's effects were indeed satisfactory, but the harshness of Praline's training far exceeded what an ordinary child could endure. Mousse could only keep offering