Tập 13: Mariko lấy lại các vector và đối đầu với Lucy, dẫn đến một cuộc gặp gỡ bi thương cuối cùng với cha mình là Kurama.

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Mariko regains the ability to use her vectors and stages one final meeting with Lucy. They meet, and Lucy goes into a state of shock after losing one of her horns. Kurama, accompanied by Nana whom he rescued after she fell off the bridge where she battled Mariko, encounters their fight. Here, Mariko realizes that Kurama is her father and meets him for the first time, beginning to cry after finally encountering her father, who appears to have abandoned her for Nana. Kurama exchanges final words of reassurance to Mariko just before the final bomb inside her is detonated, killing them both. The Director of the facility that had been holding Lucy, Nana and Mariko reveals that he is a diclonius. Lucy, who makes it out of the fight alive, reveals her remorse and emotion for Kohta and they kiss before she leaves to encounter the security team. However, Lucy's ultimate fate is unknown except that her other horn is broken, although it is possible that she is still alive or possibly dead as the shots of the guns continue, even after her horn is broken. The "family" of Kaede house, including Nana, settles down. As they are about to eat, Wanta barks at someone at the door. When Kohta goes to check, the music box playing "Lilium" stops and he sees a figure standing at the front door who might be Lucy. He then hears the grandfather clock, which Lucy had repeatedly attempted to repair, ticking again. (Source: Wikipedia)