Yeah, I've read that.
I don't speak a great deal of Japanese but I could her the jist of the story. Dante also used Cerberus, which is called keruberos and I hate that pronounciation.
From what I can gather Dante is approached by Enzo (there's some banter and Enzo seems to be poking fun at Dante) for a job and along with Trish, who they meet outside, they go and discuss things in detain elsewhere. They end up in what sounds like a cave where they findand fight a demon. Enzo seems to have become the demon's target and he's hidding at Dante's place. It seems that Enzo knows Morrison and seems rather happy to see him.
While Patty is talking with the swords and the rest of the gang Lady is walking in circles durirng the conversation while tinkering with something, her gun I guess. At one point Patty askes her a question, she stops and pull out her gun and opens fire and is now trying to kill everyone, not just Enzo; she is obviously possesed. Dante crashes in with Cerberus, whish he uses to stop the bullets but eventually has to call his 'budy' or 'partner' (aibou), Alistor. He electrecuts her and she's stunt but ok. The demons escapes but Dante, Trish, and Lady track it down and take out the demon. The story seems to end on a comical note.