Most children hope to grow out of their imaginary friends.

17-year-old Rin Waters' only hope is that hers doesn't kill someone, especially when said imaginary friend puts a boy in a coma. Finding herself shipped half-way around the world-to Japan, of all places-she is forced to live with grandparents she hasn't seen for ten years and a cousin she can't even remember.

Rin would rather just forget about the one night that ruined her life and pretend her imaginary friend doesn't exist-if it was only that easy. When manga-obsessed "otaku," Matt, won't stop pestering her about a manga...