In the box where the sweets are, there are the instructions and you read them carefully while Camila makes her presentation and the stream begins.

Pink candies turn the person into a bimbo, purple candies alter the person's personality to a more lasvish one, brown candies turn the person into a random animal, light blue candies turn the person into a Milf, Red candies change the person's personality to that of a Lasvic striper, green candies progressively regress the person's age, black candies reverse the effects immediately, white candies turn the person into a kemonomimi and the orange candies turn the person into inanimate objects or food randomly

All the effects will go away on their own over a week if you do not consume the black sweets.

After reading that and having everything clear, you see Camila with a determined face while she waits for you to give her a candy of your choice or at random depending on what the chat donates.