Well...I may have to look into this. Reason being...my name is Kerry as well and I'm a brunette.
In the Irish language, my name means "dark haired one" or "dark beauty". I'm not calling myself a beauty by any sense, I don't want to sound like a walking advertisement, but I find it interesting they named this manga the meaning of the name "black haired".
Plus it's very rare to find anything with the way my name is spelled. People can have cups and keychains in stores with their names, in a common spelling, yet people like me have to get it special ordered. To find something from Japan with my name...of course I'll be curious. lol