私に天使が舞い降りた！

Miyako Hoshino is a shy college student who freezes around strangers until her younger sister Hinata brings home a fifth-grade classmate, Hana Shirosaki. Smitten with how cute Hana is, Miyako bribes her with homemade sweets to model the cosplay outfits she sews, while Hana stays wary of the awkward older girl. Gentle, low-key episodes follow Miyako, Hinata, Hana, and their elementary-school friends through afternoons of snacks, costumes, and slow-building trust.