Mahiru Shiina is a central character in the anime series 'Otonari no Tenshi-sama ni Itsunomanika Dame Ningen ni Sareteita Ken'. She is portrayed as an angelic and kind-hearted high school student who lives next door to the protagonist, Amane Fujimiya. Mahiru is known for her beauty, intelligence, and cooking skills, which often attract attention from her peers. Despite her popularity, she maintains a humble and caring demeanor. Her interactions with Amane gradually reveal her multifaceted personality, as she becomes a significant influence in his life, helping him to improve and find happiness.