Kill the Past is the collective term for a number of related video games directed by SUDA51. The main theme in "Kill the Past" titles is the necessity for their protagonists to destroy relics of their past that burden and prevent them from moving forward. Oftentimes, characters find themselves at odds with previous events in their lives that must be confronted head-on for them to be at ease.
Although each game in the series can be enjoyed as a stand-alone story, if taken as a whole, "Kill the Past" builds an overarching plot that does not end so much as it carries on where the last title left off.
The 25th Ward: The Silver Case (シルバー事件25区), usually referred to as just The 25th Ward, is an adventure game directed by Goichi Suda and developed by Grasshopper Manufacture. It was initially released exclusively in Japan, episodically over flip-phone download services. As these services shut down in 2011, the game was unable to be played for several years until Grasshopper and Active Gaming Media released a full remake in 2018, which also featured new content. The 25th Ward is a direct sequel to Grasshopper's first game, The Silver Case, and also takes place after other sequel Flower, Sun, and Rain.