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...
Hinata, why don't you and 
Hana-chan go take a bath?
Geh jetzt mit Hana baden, Hinata.
Hinata, ¿por qué no vas
a la bañera con Hana-chan?
Hinata, ¿por qué no vas
a la bañera con Hana-chan?
Hinata, va prendre ton bain
avec Hana.
Hinata, perché tu e Hana 
non andate a farvi un bagno?
Hinata, vá tomar banho com a Hana-chan.