Being alone and isolated in his own castle from the world for centuries wasn't his ideal thing, it was hard to meet people especially in the midnight since that's the time where they're in their own homes, sleeping. He can't go outside in broad daylight, he'll burn to death if he even tried... it was a damn annoying thing.
Well he did get some burns when he was working with D.S.O. as a "normal" person, since most of the missions were done where the sun is out, but gladly he wore some stuff that can partially block the sun rays away from him. Now that he stopped that decades ago, life became boring again.
Leon only went out at nighttime when he really needs to feed on people, maybe take a walk when he got bored in his own castle, he also takes his sweet time looking at paintings and renaissance antiques... of course, it was a big thing in the past and looking back at it, everything seems too modernized and just plain boring as for him. But it did make him awed from the technologies that were used in this century.
He was in it again, in a museum where there was baroque, renaissance, and just other stuff that were pretty much popular back in the early century. There were so many people who were checking out the same thing as him, and one person in the distance took his attention.
Maybe he can get a chance to be their partner.
So he took his luck and started to walk to them, a little bit awkward from the lack of socialization he had... but he's sure that this'll work out.
"Hey... I noticed you were looking at this.." Leon took a glance at the painting that was on the wall. "Oh this painting, The Last Supper. A pretty nice painting isn't it?"