Keima confronts Elsie on why she’s still here and he still has the magic collar on his neck which the latter reveals that their contract is still not finish and the collar will only be removed until they capture all of the runaway spirits in the city. After meeting Keima’s mother, Mari, Elsie claims she is her “husband’s illegitimate child” which Mari snaps on her husband on the phone for his “infidelity” and allows Elsie to stay with them. Keima however, refuses to accept Elsie as his little sister as in his view, she doesn’t have the requirements that qualify her to be one which she tries to impress him albeit unsuccessfully. But upon hearing her story on wanting to be successful just like her older sister, Keima reluctantly accepts Elsie as his sister.
During lunch at a popular food stall, Keima and Elsie find their next target, Mio Aoyama, a rich girl who proceeds to buy all of the yakisoba sandwiches. Keima believes she is an easy target as she has all the characteristics of a Tsundere, and a love confession might break her hard shell. However, the confession doesn’t work as planned, and Mio has her chauffeur beat Keima badly. As Keima and Elsie follow Mio to her home, they are surprised to learn Mio lives in a shabby apartment.
見事 歩美を攻略し駆け魂を捕まえた桂馬とエルシィ。──だが地獄の契約はこれで終わった訳ではなかった…!!
桂馬の妹を名乗り同じクラスに転校してきたエルシィは、そればかりか桂馬の家に同居すると宣言!
すべては未だこの街に潜む駆け魂を捕まえる為……。次なる駆け魂は誰の中に?そしてエルシィは桂馬の“妹”になれるのか??
케이마와 엘시는 아유미를 공략해 훌륭히 카케다마를 잡는다.그러나 지옥의 계약은 이것으로 끝난 게 아니었다!!엘시는 케이마의 여동생이라고 속이고 같은 반으로 전학을 온다. 그 뿐 아니라 케이마의 집에서 같이 산다고 말하기까지 하는데..!이 모든 것은 아직도 이 거리에 숨어있는 카케다마를 잡기 위해서다.다음 카케다마는 누구의 마음속에 있을까?그리고 엘시는 과연 케이마의 여동생이 될 수 있을까??
Ya habiendo conseguido cazar a su primer alma perdida, Elsie modifica la realidad para vivir con Keima y así poder encontrar las almas perdidas rápidamente, cosa que no tardará demasiado tiempo.