WATATEN!: an Angel Flew Down to Me -Precious Friends-

Hoshino Miyako is a very shy college student. When her younger sister Hinata Hoshino brings home her classmate, Shirosaki Hana, Miyako becomes enchanted by her cuteness and begins having her dress up in cosplay in exchange for snacks. The series follows Miyako as she grows closer to Hana, along with Hinata's other friends, Himesaka Noa, Tanemura Koyori, and Konomori Kanon.