A new scene in Monika/Sayori's routes, plus an edit to a scene in Natsuki's route
A Time of Day system to change the look of each day
At least 4+ more JoJo references
New content for getting the worst ending possible
Grammatical fixes
A new Poem game system
New music
Option to skip directly to new content
minor retcons
New background CG
An easier install:
To install the mod, download ddlctvn.zip. Then, take the mod_assets folder and script.rpa file, and drop them into your ddlc install. Make sure to overwrite the existing files. That's it.