Arata Kasuga is living an ordinary life with his cousin, Hijiri, when a mysterious happening called a 'Breakdown Phenomenon' makes her vanish before his very eyes. Determined to eradicate the Breakdown Phenomenon and get Hijiri back, Arata enrolls at Royal Biblia Academy. It's a tough road ahead, but nothing's impossible when you've got seven beautiful girls---each a master of her own magical art--by your side! A romantic comedy and sometimes-serious wizard school story -- From the publisher.

Originally published : Tokyo : Kadokawa, 2011- as Trinity Seven shichinin no masho tukai This book reads from right to left, manga style. "Kadokawa Comics A" --Spine. A fantasy novel.