There are 5 (+ a mysterious one) main Doods characters, each has a unique personality. Check out the bio of those cute and hilarious characters here:
Doods can be pulled from Gacha in Shop (1 free draw daily or spend Mana Gem) and have different rarities:
Different rarities of Doods have have different outfits outlook

Pilot Outfit

Mushroom Outfit

Burger Outfit
Concept Art for reference only, does not reflect actual presentation in the game
Leveling up your Dood unlocks its true potential, boosting task performance, awake time, and dream depth.
Each level provides multipliers that improve work efficiency and how your Dood interacts with the world.
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Quick Summary