Oreimo

S01E0425 min· aired 10/24/2010
My Little Sister Can't Be Going to Summerket
TMDb7.0
Overview
One day, Kirino's non-otaku, "public" friends—Aragaki Ayase and Kurusu Nanako—come over to visit. Kyousuke is harshly told by Kirino to not let her friends see him.