Kono Aozora ni Yakusoku wo

Kono Aozora ni Yakusoku wo (この青空に約束を―) is an adult visual novel featuring Wataru Hoshino (星野 航), a high-school student of a Takamizuka Academy from South Sakou island far to the south of Honshuu, one of the four big islands comprising Japan. Wataru lives with a couple other girls in the same dormitory, but due to their families working at the industry that is about to end contract with whatever service they were providing on the island, they only have one year until they all move. One day, Wataru encountered an unknown girl under strange circumstances. After getting to know her, he found out she's living in the same dorm as he is, and attending the same school. Her name is Rinna Sawaki (沢城 凛奈) and she is a transfer student. That's when his matters of the heart start to erupt as he and Rinna might be becoming closer, but the fact they will get separated in a year, and the fact he cannot even remember how he first met her are making things more complicated.

As an adult visual novel, the game features lots of text to read, full voice-acting for heroines during dialogue sequences, adult sex scenes, and various options which lead to branching in the story.