Elfen Lied OVA
Poor Nana just is not able to adapt to her new life after being invited to stay in Kouta and Yuka's home. Especially when Lucy, the evil killer she's living with and despises, is turning out to be an incredibly sweet, clueless person named Nyuu who just wants to make others happy. Regardless, Nana is determined not to be shown up by the likes of her and will pull no stops at proving she can be useful too. Whether it be cleaning the floor, scrubbing the windows or even going on walks with the girl she hates the most, Nana is set on fitting into her new household. But through her efforts is she starting to grow close to Nyuu, despite the way she feels about Nyuu's other personality?
