Normal high schooler Kyousuke discovers that his perfect little sister Kirino - model, athlete, straight-A student - secretly collects moe anime and little sister-themed eroge games! (◞‸◟) After years of cold treatment, she forces him to become her otaku hobby confidant and life counselor. Through helping her meet fellow otaku friends Saori and Kuroneko, their sibling relationship slowly repairs while Kyousuke gets dragged deeper into anime culture. But underlying romantic tensions complicate everything... ¯_(ツ)_/¯

(⌐■_■)oO omg you gotta check this out