Keeping his promise to Himari, Tetsuo visits the Takanashi household to talk to the sisters' parents. Though the twin sisters' names differ by only one letter, Hikari is a vampire, while Himari is an ordinary human. Though they argue often, they are very close. When he experiences the warmth and kindness of the family that raised these twin sisters, Tetsuo stays much longrer than he had intended.
I thought maybe I'd bought it...
...ظننتُ أنّي من اشترتها
Ich dachte, ich hätte
es gekauft gehabt.
Pensé que yo lo compré…
Pensé que yo lo había comprado yo…
J’ai cru qu’elle était à moi,
je crois…
Ecco... Pensavo di averlo comprato io...
Pensei que eu que tivesse 
comprado... Mais ou menos...
Я подумала, что сама его купила...