A Teen Titan/ A Certain Magical Index crossover: Some of The Level Fives are going on a vacation to America(With Kuroko, obviously). Jump City, to be exact. When they aid the Teen Titans in a fight against Cinderblock, after he destroyed the hotel they were staying in, they're invited to the Tower. Eventually, they find the Titans worst enemy; Slade. And he's planning to raise an Army of the Undead. And that's not all; One of The Titans realizes they, too, may be a Level 5... Book 1 in the series.