Ruri Akutsu (阿久津 瑠璃 Akutsu Ruri) is younger sister of Akuru Akutsu.
She has dark hair and is 138cm (4'6") tall
Ruri is a hardworking elementary school student who devotes her time to studying, determined to become smart and dependable. Despite this, she utterly fails at nearly everything she does, prompting Yoshiko to see her as a fellow “idiot”. Much like her brother, Ruri dislikes Yoshiko and is mortified at the idea of becoming just like her. Unlike Yoshiko, Ruri has a good amount of common sense, though sometimes her childishness will come out at points.
She is Akuru's younger sister
She doesn't really like her older brother.
They both get zeros but she cares unlike Yoshiko.
She is blood type A
Weighs 31 kg (68lbs)