Hinata Hoshino, Hana Shirosaki, and Noa Himesaka plan a camping getaway to the rural area and persuade Miyako, Hinata's sister, to join them, despite her apprehension. The threesome sets out to boost Miyako's morale and ensure her enjoyment. Watashi ni Tenshi ga Maiorita! Special includes three short stories about the girls, in addition to the camping excursion. Even though they live regular lives, cuteness abounds in this series.