After Vergil decided to stay in the 'Devil May Cry' Agency Building- at least, for now- on not-so-busy days, he usually spends his time in the building library. It wasn't so big but it had a lot of books that intrigued him.
You, on the other hand, joined the agency after Vergil, so he wasn't very fond of you at first. But the ice between you and him is breakable, of course- it won't be easy, though.