From DMP

The Guilty Vol. 1: Verdict
Toya Sakurai has always wanted to get his hands on Kai Hodaka's books before anyone else, so when he is assigned to be the bestselling author's editor, it seems like a dream come true. Kai Hodaka, with a slick face and a sinful voice, is the subject of numerous rumors and gossip, but Toya is more intrigued by the glimpses he sees of the real man behind the stories: quiet, insightful, and with a hidden kindness to him. So when Hodaka makes a shocking proposal, Toya almost can't believe it: Toya's body, in exchange for Hodaka's manuscript. Enigmatic author...morally bankrupt celebrity... which is the real Kai Hodaka, and will Toya find out before he loses himself entirely?

The Guilty Vol. 2: Original Sin
Toya Sakurai is swimming in success after his work with the bestselling author Kai Hodaka, who is also Toya's secret lover. But with expectations so high, his company soon gives him a new project: find a fresh and exciting new author to work for Sozan Publishing. When Toya finds the young author Yo Amano-he discovers that the traits his lover Hodaka lacks-Amano has, and Amano is sensitive and caring to Toya's feelings. Emotions will run high in this second volume of The Guilty series.

The Guilty Vol. 3: Redemption
Editor Toya Sakurai is the talk of the industry for his amazing work with best-selling mystery writer Kai Hodaka. But most people don’t know that the root of Toya's success is his secret relationship with Hodaka. However, Toya's success leads to jealousy from his coworkers, and that jealousy fuels some hateful gossip. All of this compounds when rumors fly around the internet about Hodaka having a relationship with one of his male editors. When Toya tries to distance himself from Hodaka to abate the rumors, everything gets worse, until finally, Hodaka asks for a new editor! Can these two guilty hearts find happiness together?

The Guilty Vol. 4: Forsaken
Toya Sakurai is starting fresh in a new apartment, now enticingly closer to his lover, Kai Hodaka. When he invites his lover to come visit, he realizes the benefits of living so much closer. But when Toya's publishing company decides to put out a fan book on Kai Hodaka, Toya is shocked to learn just how little he knows about his lover after two years! Also includes a collection of short stories with deeper insight on our favorite guilty pair! Toya spends a love burning weekend with Hodaka in Hayama after the torturously written Emergence. Then, six months into their riotous relationship, Hodaka shows just what he’s willing to do to make Toya happy. The loving, dangerous, guilty love they share comes to a climax in this final volume.