In Basil's past life, the Elves had decided to ask the other races to help them solve the problem that they couldn't handle. They didn't want to involve that many races, however, which was why they had claimed they had a little misunderstanding.
They knew the human was the nosiest race; and as they had expected, the human quickly took the bait. The reason why they aimed for the humans to aid them, however, wasn't because they trusted the humans.
The Elves had a good relationship with all of the existing races in this world, except for the human. The nature between the two races contradicted each other, so they couldn't find the middle ground where they could get along with each other.
Because of that, rather than bringing harm to the races they had a good relationship with, the Elves decided to "sacrifice" the humans instead.
