Ayuko Oka

Height: 143 cm Oka is 143 centimeters tall but is very fullbreasted. She was seen kissing Ueno by Tsubaki after school one day but it didnt seem to bother her much. After she happened to see Urabe and Tsubaki together on their way back home she tries to become friends with Urabe despite the latters initial rejection and with her devious insight and intelligence she starts helping Urabe develop and deepen her relationship with Tsubaki. She becomes the first friend of the unsocial and very reserved Urabe.