Kain had received 5 requests from his new research assistants, 3 of which were relatively simple.
The other 2 were virtually impossible if one didn't have the help of a System like Kain: Finding a new evolution form for Rivian's Leafwing Moth, and rediscovering the lost method of evolving Dravis' Raging Steel Boar.
Now Rivian's Leafwing Moth had evolved into a plant-attribute greater fairy. With Kain's help, he'd attempted to evolve into a Royal Fairy with 8 elements, but a certain amount of luck was needed to succeed and luck was not on his side.
The 3 other simpler requests were also completed by Kain, meaning that all the assistants worked happily and more eagerly than before.
Only Dravis' request was unfulfilled, however he did not rush Kain.
Honestly, the uncovering of a further evolution in the Silkworm evolutionary pathway would have been considered to be impossible by many a few weeks ago—but Kain made the impossible possible.