Debug Girl is a new and exciting combination of retro pixel art action, visual novel, and debugging. You, the player, have just bumped into your old classmate, Kurumi Sakura, at a game shop, and the two of you hit it off. You set your minds to spending your summer break creating a game together. With her in charge of debugging, the two of you aim to create the best game, all while dealing with the many bugs and glitches you so carelessly create. Can you finish the game in time, and more importantly, what will become of your relationship with one another...?