Title: Nee Summer!
Japanese Title: 姉SUMMER!
Total Episodes: 2
Released Date: Dec 30, 2011 till Apr 6, 2012
* Based on the doujin game by Artemis.
There is a girl whom Yuuta likes. One day, while lost in his thoughts whilst staring at her picture on his handphone, he is seen by his cousin, Kei. Kei mistakenly thinks that he is despondent over poor performance on his mock exams, and so goes over to make fun of him. To rebuke his slovenly attitude, Kei treads on his groin. However, as she feels his manhood stiffening beneath her foot, she too starts to feel aroused…
~ translated and adapted from official site by Cranston