I really like the idea of being able to buy gifts and give them to the girls to increase points ! A really cool way to continue this development would be to increase the ability to take relationships with individuals further, possibly with a heart system similar to one in harvest moon / rune factory, utilizing the stars / love / lust gauges to unlock certain (hidden?) events with girls or whatever. Then maybe as they get higher levels of love or stars they offer you more benefits (shelia can harvest the eth for you, asmedia can make u food which u could use as a gift, etc) A lot of work however but a cool idea :)