Romance
Overview
Romance is what tracks how much the other characters like you. Romance can be seen on the contact list in the phone, and all characters in the phone's contact list can have their romance level increased.
There are three ways to increase Romance, These are to spend time with the character, give them gifts or as rewards in quests either for speech options or completion.
Currently the factors requiring romance are few, mainly affecting the odd couple of quests such as Hypno Natalie or the Wabulance quest lines.
Spending Time
Spending time is the easiest way to increase romance but the romance increases are rather small, this is more a way of gaining other attributes. The following girls give the following attribute boosts:
Knowledge
Claire 1~2, +romance, advances time Zoe 1~2, +romance, advances time
Effort
Sofia 0~3, +romance, advances time, has a mini-game to determine +effort rather than being random. Nicole 1~2, + romance, advances time
Charm
Violet 1~2, +romance, advances time and costs $5 Flora 1~2, +romance, costs $5 and only once per weekday Aiyana 1~2, +romance, advances time
Random
Natalie 1~2 random attribute, +romance, advances time
Gifts
Gifts are the main method of increasing romance, these give the most significant boosts and each girl has different preferences (check their wiki pages for more information). The more expensive gifts give the best value for money with the best gifts giving a massive 2:1 ratio of price to romance increase. Gifts can be brought in the gift shop in town and are the most recommended method of increasing level significantly.