Minamoto moves into his new apartment, but is uninformed that the chief of B.A.B.E.L. had approved that The Children would come to live with him. He initially dislikes the notion of sharing his apartment with the girls, and gets angry at them after they uncover a yearbook from his elementary school days. The Children go into the town after he yells at them, and become hostages when an esper holds up a bank. The esper notices their limiters and tries to get them to help him since they are all espers, but they decline and help apprehend the criminal. Afterwards, Minamoto decides to let The Children stay at his apartment.
石油コンビナートで起こった火災事故を見事に解決する『ザ・チルドレン』。任務後の検査も異常は無く、すやすやとかわいい寝息を立てる３人。自宅へ戻った皆本がソファで居眠りをしていると、自宅へ侵入してくる謎の男達の姿が！身の危険を感じた皆本は、素早く身を隠し、桐壺局長にＳＯＳを求める。局長は、皆本宅にチルドレンの３人を派遣。ありえない早さで到着した３人に驚く皆本を尻目に、薫は無用心に男達に近付くと、親しげに話し始めた。そう、男達の正体はバベルの職員。皆本の家に住むつもりのチルドレンの指示で、家を改築していたのだ！この共同生活どうなる・・・！？
