Girl from nowhere features the manifestation or appearance of a mystical divine or superhuman being, named Nanno, whose aim was to target individuals and expose the evilness and hypocrisy of human beings, given the authority to judge and punish the wrongdoers. Nanno, which means Karma in Thai, is no different from Satan; a fallen angel who has lost hope in humanity. Given that right to judge and punish wrongdoers, the immortal is a self-proclaimed righteous that finds joy in proving and justifying her pessimism for human nature. She schemes, tempts and leads her targets into committing the worst aspect of crimes she believes will eventually happen anyway. This elucidates her often misjudgement as well as the unlawful, unethical, and unjustifiable punishment of the wrongdoers. Nanno isn't the angel portrayed in the first few episodes, albeit her soft spot for the boy who was willing to sacrifice his life for her. The scriptwriter tries to create that audience interest in the introduction by utilising a narrator and dialogue to create an emotional attachment to the protagonist before revealing her unacceptable behaviour in the later episodes. Her behaviour in the later episodes is going to leave you perplexed. Is she here to actually punish the wrongdoers and bring justice? Or is she here to create chaos by adding oil to fire? Audiences that decide to give Nanno's unacceptable behaviour a benefit of the doubt will, mostly, at this point drop the series with confusion. Because you will never be able to understand the purpose of her existence until towards the end of season 2, where they introduce Yuri. Yuri's existence is going to challenge Nanno's beliefs, judgement and her ways of punishing those in the wrong, causing her to doubt herself and losing her resilience. You need to infer and accept that Nanno is not actually a nice person from the beginning before they actually reveal it towards the end. Otherwise, you are going to dislike and reject her to the point of dropping and missing out on the main point of the series.