Seiji is happy to be spending time by himself, only for Akane, Yuzu, Guri and Shikimi to all turn up at the same time. After spending the day with them Seiji tries to take a bath but his privacy is repeatedly invaded. Later with Akane in the garden Seiji keeps his promise and kisses her. At night the girls all sleep in Seiji’s room while Seiji sleeps in the living room, however in the morning all the girls have moved into the living room with him. Aqua returns, sees Seiji with four girls and punishes him. Seeing Aqua is upset Guri promises to help Aqua get some attention from Seiji. Aqua questions whether Guri has any actual feelings for Seiji. Stolas the Penguin returns, stronger than before. While escaping Aqua is defended by Korari. Aqua, tired of being afraid, stands up to Stolas and kicks him in the face. Seiji arrives to protect Aqua but finds she no longer needs protecting. Aqua realises her brother is still the same person he always was, despite his multiple girlfriends. Guri worries that something is missing between her and Seiji. Shikimi offers to talk with Guri about it and they disappear together.

Guri has been missing for over a week and Korari is concerned Seiji is not taking it seriously. Seiji suspects Shikimi is responsible and confronts her. Shikimi captures Seiji and kisses him with Guri secretly watching. Guri had confided in Shikimi her fear something was missing between her and Seiji. Shikimi suggests staying away from Seiji and observing him with with Akane. Guri saw that Seiji did not seem to be looking for her. Akane and Yuzu arrive and Shikimi reveals the depressed Guri. Shikimi tells her to ask Seiji how he feels about her. Seiji angrily responds that Guri has only ever been a nuisance, causing Guri to become cocooned in black feathers. Maou appears, having been working with Shikimi to manipulate Seiji into breaking Guri’s heart so she would fall from heaven and be reborn as a demon. The new demon Guri nonchalantly announces that the old Guri is dead and it is Seiji’s fault, then leaves to begin breaking up all the couples she ever brought together. Shikimi leaves with Maou. Yuzu blames Seiji for neglecting Guri and insists he help her save Guri. Akane refuses to help while Seiji decides he also wants to save Guri.

Kamisama suggests Seiji and Yuzu go to hell to retrieve Guri. Guri refuses Maou’s offer to become the new Satan so he can retire. Seiji and Yuzu are found by Shikimi, forcing them to flee. They are rescued by Akane, who reached hell in an unusual manner, and after reaching Guri demands she either return to normal or stay a demon forever. Seiji finally realises how badly he really had been treating Guri and pleads with her to return to normal. After Guri instinctively makes a dirty joke Seiji realises normal Guri is not gone after all. Shikimi explains Guri’s plan to disappear and the pain she felt when no one seemed to miss her. Guri becomes so confused by her feelings she almost faints. Seiji, following advice from Kamisama, asks her what she really wants. Guri’s demon wings are suddenly replaced with angel wings as she returns to normal, having realised she wants Seiji to love her and kisses him. The heartfelt moment abruptly comes to an end when Akane, furious at the kiss, throws a knife at Guri’s head. With everything back to normal Guri promises to add Shikimi to the harem if she gives love a try.