A companion to Katsuhiro Otomo's short film anime collection Short Peace, Ranko Tsukigime's Longest Day is a fast-paced 2D side-scrolling platformer game directed by Goichi Suda (Suda51) of Grasshopper Manufacture and developed by Crispy’s Inc. Ranko Tsukigime’s Longest Day introduces a whole new storyline featuring stunning animation, thrilling gameplay, and psychedelic visuals that will draw players into Ranko Tsukigime’s story.

By day, Ranko Tsukigime is an average high school girl who lives alone, but at night she is a deadly hitman who deftly assassinates her targets. One fateful night as Ranko heads out to eliminate her next target, a demonic enemy organization creeps up and threatens the lives of Ranko and her friends. Players will put their reflexes and quick judgment to the test in the fast-paced platforming gameplay that will have them blazing through dangerous, obstacle-ridden environments to flee from an ominous enemy looming close behind.