CLAMP Premium Collection Tokyo Babylon, Vol. 3

Tokyo-a bustling yet mysterious city, full of rumors and dream chasers. There resides Subaru Sumeragi, the thirteenth head of his clan and a powerful onmyouji. When Subaru sets out to investigate a series of anonymous prank calls, he finds three high school girls who are convinced they're part of something greater. Can he save them from themselves before they stray too far into the world of the supernatural.