Besides Luo, the North Blue also had something Ryan was interested in: the life sciences researched by Germa Kingdom's king, Vinsmoke Judge.
Vinsmoke Judge had been a member of the scientific team MADS. It had to be said that every member of MADS had been an extraordinary figure.
MADS had been founded by the young Vinsmoke Judge and Vegapunk, with members including Caesar Clown, Queen, and others.
Unlike ordinary scientists, these men all worshiped violence and devoted themselves to developing various advanced weapons to achieve their own goals. "Mad" meant crazy, and with the plural "s" added, it seemed to suggest that they were a group of madmen.
Judging from what they did later, they truly lived up to the title. MADS measured the sea with a scientific eye and marveled at the world's rich races and diversity—the Fish-Men who could move freely underwater, the enormous Giant Tribe, the Longarm Tribe and Longleg Tribe with their exceptionally nimble limbs, and the ability users who had gained extraordinary powers after eating Devil Fruits. The physical advantages of these different races were all excellent materials for developing weapons.
Under the leadership of the genius scientist Vegapunk, they finally discovered the crucial Lineage Factor Theory. The height of this discovery had nearly touched the realm of the gods. It was equivalent to discovering the Life Blueprint, and such a major achievement was quickly noticed by the World Government.
Using the danger they posed to the world as an excuse, the World Government arrested Vegapunk and the MADS team. In reality, it wanted to buy off the team and use their research to develop even more powerful weapons.
MADS disbanded. For the sake of restoring his kingdom, Judge escaped the government's control. Queen went out to sea and became a pirate, later joining Kaido