Two OVA episodes featuring additional stories. Episode 0: Ritsu and Takano used to date back in high school, but broke up due to a misunderstanding. This is that story. Episode 12.5: Hatori and Chiaki go to visit the latter's family. It's really awkward in many, many ways.

Even at their colleagues' wedding, the sparkling members of Marukawa Publishing's Emerald Department stand out. Having been invited to assist in providing entertainment for the guests, Masamune Takano, Ritsu Onodera, Yoshiyuki Hatori, Shouta Kisa, Kanade Mino, as well as Takafumi Yokozawa enjoy the festivities as much as their work allows. As love blossoms between two individuals, marriage marks a momentous occasion fit for self-reflection. Whether they like it or not, the men of Marukawa need to consider where their own relationships are headed.

Takaya Ougi is just a typical high school guy who wants nothing more than to protect his best friend and live a normal life. Enter Nobutsuna Naoe, an older man who informs Takaya that he is in fact the reincarnation of Lord Kagetora. Naoe, himself a possessor, awakens Takaya's abilities to exorcise evil spirits and fight the Fuedal Underworld. While most possessors remember their former lives before being reincarnated, Takaya does not. Naoe is thankful for this, considering his passionate and abusive past with his Lord Kagetora. As Takaya improves his abilities, he also begins to remember what Naoe did because of his love for him. Meanwhile the dark forces of the Hojo and Fuma clans begin their attack as the Fuedal Underworld descends upon the living world.

Takaya was sent to Kyoto to investigate the re-awakening of Ikko sect and Araki Murashige, a member of the Ikko sect who deserted the clan.With the help of his vassal Haruie, Takaya is finally successful in tracing Araki who hunts down a 400-years-old mandala (Buddhist artifact for meditating) that was made of the hair of the deceased Araki clansmen. Unfortunately, by the time they meet, Haruie recognizes Araki as Shintarou, her lover in her past-life. Takaya orders her to eliminate Araki, who is a threat, but will she be able to do it. Furthermore Takaya finally meets Naoe...