Sins of the Father by Anna O'Neill

The weight of the past could tear them apart… nn In his first mission as a shinobi, Sora Sanada has more than its success riding on his shoulders. Every move he makes is a reflection on his clan’s honor. So when an unexpected scuffle leaves him injured and the mission in jeopardy, he’d rather be left behind—but his partner, the mysterious, masked Kaname, has other ideas.nn Kaname breathes a silent sigh of relief when the younger, less-experienced Sora agrees to a plan to throw their enemies off their trail. As a member of the deposed Takeda clan, the last thing he needs is more disgrace heaped upon the family name should he lose the Sanada princeling.nn His plan to disguise themselves as naked lovers is a rousing success in more ways than one. It sparks a bond that shakes them to the core—and the Shinano Province to its foundations…