Leo first comes off as a very cheerful and quirky man. He can act very goofy at time and many would often at first glance mistake him as a innocent and kind guy. Underneath that smile hides a more sinister side, he has shown not a single bit of compassions for others. He treats other people like tools for his own benefits and to be disposed of when used. He believes there is no pride in being a assassin, that they don't deserve happiness. He does whatever he wants and loves slacking off.