Short Peace: Ranko Tsukigime’s Longest Day is an action-platformer set in a futuristic Japan. Players control Ranko Tsukigime, a high school student who embarks on a mission to retrieve a stolen book while navigating through fast-paced, side-scrolling levels. The game features a unique art style and an engaging storyline, blending traditional platforming mechanics with a cinematic narrative. Players must overcome various enemies and obstacles in a series of increasingly challenging levels to unravel the mystery behind the stolen book.