An accident leads to Jirou, Kotaro, Mimiko, and Zelman being pulled into the past. But what happens when they somehow end up in England, and, of all places, at Hogwarts? Well, let's just say that the students are going to be having one heck of a year! Between classwork, homework, life-threatening situations, Rivals, and an a coke-obsessed pyromanic-Vampire just what could go wrong?

Jiro and Kotarou go undercover at Hogwarts! But with the Kowloon children after them and sneaky smart wizards, will they be able to keep their cover from being blown? parings: slight Kotarou/Hermione

Jiro, Kotaru, and Zelman go on a cruise to Egypt. Ron 'accidentally' sets off a spell in a pyramid that sends the trio into the wizarding world. What will our Black Blood trio do when they get an offer from Dumbledore? Who's Harry Potter? 3rd year

What if our BBB Trio ends up meeting the HP Trio with a new member and all 7 studies in Hogwarts and a first year look-alike god comes in? Vamps, Wizards, Gods equals Total Chaos! A Black Blood Brothers, Harry Potter and Matantei Loki Ragnarok Crossover!