Yoociel/Yooseven [Horribly Written Warning]
Badly written book about Yooseven with much of a plot. Update (6/28/18): Don't read this book, please. Somehow it made it to #1 Yooseven?? Um, excuse me? This book is the worst thing I've ever read, so I'm not sure how that happened. There's so, so many other books that deserve way more attention and written 100 times...