Kip. 1: Plug In!

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While looking for some targets to charge, a charger girl named Plug encounters Sento, who can actually see her and hit her. Plug notices his sister, Hakone, is showing a lot of depression, but Sento refuses to let her stick a giant plug in his little sister's back. Plug discovers that the cause of Hakone's depression is that her brother never lets her do anything to help him, but Sento refuses to listen to her. Hakone considers jumping off of a building, but thanks to the joint efforts of Plug and Sento, she is saved and charged, and is confident enough to convey her feelings to Sento. (Source: Wikipedia)