Disclaimer: Witch Hunter belongs to Cho Jung-man
-Wishful Thinker-
Tasha doesn't have a very long list of things that matter to him. The things that do matter are money, Aria, and Halloween.
Tasha's list of priorities is the list of things that are important to him, but sometimes they don't always come in the same order.
Money is something solid a person can hold onto (or let go depending on the situation). Money is can buy a person many things, but money itself means nothing. It's the representation of money and what it can do that draws Tasha to hoarding it. It never hurts to have a coin or two to bribe the men guarding a bridge (or feed the homeless girl begging at his feet).
His sister is his family. Blood is thicker than water. But magic is more powerful than any form of blood whether it is human or witch. Tasha flexes his missing arm and wonders how his hand is doing. The hand that was wearing the dimensional gate as a glove is lying somewhere on the ground dying a quick death. Loosing part of himself was like loosing Aria all over again. The dimensional gate and his guns were to help him get Aria back.
Halloween is something else altogether. She's his best friend, his confidant, his supporter. Tasha has never thought of her as anything more, but the bond they share is undeniable. Egg of Creation his foot, he and Halloween don't just turn away from each other because of a few lost memories and some White Knight. He hopes that they can stay like this forever. Best friends and traveling companions as well as a force against evil. Side by side like partners forever. Tasha almost dismisses himself as a wishful thinker, but then he remembers how good a pair they make. They are powerful together. They are more powerful together than apart and they depend on each other more than they show it. It's a good bond. Halloween is always someone he can trust (most of the time).
Maybe he is not as wishful as he thought. Maybe his list of priorities is not long, but they are priorities, whatever order those priorities may come in.