Mahiru Shiina truly deserves the title 'Angel': a radiant beauty adored by everyone, she shines in both studies and sports. Her grace and intellect make her a favorite among classmates. She exists in a world far apart from her next-door neighbor, Amane Fujimiya. Though they share a wall, the two have never spoken. Their quiet world shatters when Fujimiya spots Shiina, sorrowful, perched on a swing in a downpour and offers her his umbrella.
The following day Fujimiya falls ill, prompting Shiina to repay the gesture by caring for him. He believes this will be their sole encounter and quietly cherishes her goodwill, hoping the kindness will leave a lasting impression. Yet Shiina, concerned about Fujimiya"s untidy habits and poor diet, takes it upon herself to cook and tidy for him.
As the unlikely duo spend hours in Fujimiya"s flat, they uncover the true essence of their bond and the tender feelings that blossom.
