From the growth of the rarity of character, interior and room, your income grows. Сharacter, like rest NFTs, is necessary for farming and has 5 rarities.
Room and interior of character must match its rarity or be with rarity higher. Otherwise, it is impossible to deposit them and start earning.
After game will be released, you will can "Blend" three common character and get the following NFTs with common rarity: room, character and 8 interior items.