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...
It's not your fault, Hana-chan.
Da bist doch nicht du schuld!
No es tu culpa, Hana-chan.
No es tu culpa.
Ce n’est pas ta faute, Hana.
Non è colpa tua, Hana.
Não é sua culpa, Hana-chan.
Это не твоя вина.