As with other works by Hinako Takanago, `The Devil's Secret' contains well plotted stories which roll easily from page to page, and again, as usual with her work, is positively brimming with endearing characters.
The primary story between a considerate priest and a boy who has mysteriously grown horns and a tail is fun and sweet. It focuses on the sexual kink of being loved by (what could be) a demon and their blossoming romance.
The next two stories are firmly in the modern day. One involves a serious (socially maladjusted) college student who takes a small stint in teaching at a local high school. He is then pursued (quite energetically and openly and during class no less) by a high school student, and though the characters are a bit exaggerated, it's a blast to read. The other story involves two college students and long distance and longing, and was an enjoyable read with a satisfying conclusion (if easily put out of mind by the other stories).
Our last stop is back in the land of demons, and it focuses on some of the most stunning (if unique - what with tails and wings) men Takanago has ever drawn. It's not a straight course in love for out poor...er demon..., but (if you are like me) you'll enjoy the smut and root for both the seme and the uke while laughing at the situation (that, of course, they brought upon themselves).