Levi revealed his grandiose wants without an ounce of hesitation... he got into this conflict for the sake of the Zen Relic Store, but then he realized that he could seek to claim everything if he saved House Zen!!
In his eyes, House Zen was so desperate for a solution that would help them maintain their noble status that they might not care about anything else.
After all, losing the noble status meant the collapse of House Zen forever... on the other hand, Levi was aiming for House Targon's estate, which they didn't have any claim over with their current weak case.
As for the store? That was the real payment from House Zen for his services... House Targon's estate was his rightful conquest if he managed to get the bulletproof evidence that would expose all of their illegal trespassings.
As expected... Brahmin didn't seem to care much about House Targon's estate. He was never a greedy person, nor most of his kin.
