Harem
From now on, all the girls will have a specific rarity that will influence her stats, affection and experience requirements
Girls will be divided into the following categories: common, rare, epic, legendary. With a sub-category of common girls, starter girls
The affection required will now be totally tied to the rarity of the girl and consequently won't augment as your harem increase
All the girls will see their stats rebalanced according to their rarity