Joshi Daisei ga Goukon de Onee-san ni Mochikaerareru Hanashi

Vol.1 Chapter 16
Vol.1 Chapter 15
Vol.1 Chapter 17
Vol.1 Chapter 15
Vol.1 Chapter 17
College girl Kawada Rika gets roped into going to a mixer where she meets an older girl named Suda Natsuko and they are immediately enamored with each other.