Ep. 2: Kuro membuat perjanjian penyelamat nyawa dengan Keita setelah ia terluka parah oleh Seiji

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Keita, after having fed Kuro, encounters a Tribal End named Seiji sent to capture her alive after the previous encounter at the ramen stop was deemed to be a failure, due to the Tribal End's defeat at Kuro's hands. In the midst of the fighting, Keita is killed when his heart was pierced by the Seiji's mysterious Exceed Energy in an attempt to fight Kuro. To save Keita before he dies from his fatal wounds, Kuro decides to issue a Contract between them by exchanging their hearts after she brought him to safety. Kuro is able to defeat Seiji by electrocuting him after she created the pact with Keita successfully. (Source: Wikipedia)