Just Another Day
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
There's nothing special, exciting, or even happy going on, it's just another day. This mod has heavy topics of depression and suicide, play at your own risk. Side note, the settings menu is a bit janky, but that's about it.