First off, I want to apologize for having slacked off majorly this month.
Ranko is the first cousin of Chihiro. Often called Wanko by Chihiro, at times she says that Chihiro should use "-san" after her name. Ranko has liked Chihiro for some time (Since he saved her from a dog when she was about 6 years old. But, unknown to her, he was only trying to protect the DVD with which she was shielding herself) and develops a rivalry with Rea although she also likes to tease them. She eventually confesses to Chihiro, but realizes before he can answer that he loves Rea. She has accepted that her love is unrequited for now, but hasn't given up and occasionally does something reckless such as ingesting a bottle of Resurrection Pills to turn herself into a zombie. Fortunately this failed since Darin was too lazy to change the bottle label and she merely passed out from a minor allergic reaction.