Most mods install on top of a fresh copy of DDLC, free from ddlc.moe. Follow the author's instructions, and keep a clean copy of the game.
About this mod
This is a satire DDLC mod, like 'DDLC Mod Slander' in a way. Please do not take everything you read seriously the instant you start playing.
(Is a very surface-level critique of a community that a new person made a mod about)