Prequel https://e-hentai.org/g/2081622/caf6f80e36/
timeline is probably when she got wrapped in black tentacle and got transported into mental world

Sequel : https://e-hentai.org/g/4210093/485bcad165/

about translation: english is not my main language so my grammar is jumbled mess. my standard for translation is either i can understand the story + i can use it to jerk it off

Always nice to see some slightly thicker protagonists getting corrupted.

Base +6, v1c0d1n +7