Omori In Dnd?

Sorry if this is the wrong forum to post this to, but I found a group of players (3) i want to DM for to make an omori campaign. These are my goals:

- CREATING AN OMORI-LIKE STORY FOR A CAMPAIGN, WITH ALL THE CHARACTERS (Jawsum, Sweetheart, Etc)

-GIVING OFF AN OMORI VIBE (horror, depression)

-CREATING AN EMOTION SYSTEM IN DND

-CREATING CHARACTER SHEETS FOR MY PLAYERS

can anyone help me? thanks :3

NOTE: I have all dnd 5e resource books+ campaign books, I’m thinking for the characters maybe:

BASIL: Shifter Druid

OMORI/SUNNY: Generic Human Fighter/Rogue

HERO: Half-Elf Cleric