According to seiyu Kano Mari
's blog, Kurii Cha's comedy manga "+Tic Nee-san (+Tic Elder Sister)" was announced to get an anime adaptation.
+Tic Nee-san manga official website
Chapter 1 of +Tic Nee-san
Nee-san: Kano Mari
Makimaki: Inoue Marina
Okappa: Uchiyama Yumi
Manga +Tic Nee-san has been serialized in Young GanGan. It's about three high school girls, who belong to a plastic model club.
Source: Kano's blog