Shy college student and otaku Miyako lives at home. One spring day, her little sister, Hinata, brings home a new friend she made at elementary school. From the moment Miyako sees Hana-chan, her heart won't stop racing! Desperate to make friends with the angelic Hana-chan, Miyako uses her skill at making sweets to try to lure her in, but...
Don't scare me like that, Mya-nee.
No me des esos sustos, Mya.
Mi hai fatto spaventare, sorellona Mya.
Não me deixe com medo assim, Miya-nee.