I've read the FAQ, but it doesn't cover this situation:
Day 18: Surprising Founding Festival~
After the dance, Luciano gets a letter that says that he needs to go back to his kingdom to practice for the world dancing expo.
'Unfortunately I don't know when I'll be able to come back' 1. Stop Him 2. Let him go
'It's a royal order I can't refuse it... (if you pick 'stop him') 1. I understand 2. No! Please stay! 3. Forget it ! Go already!
'Princess, are you sure that's what you want?' (if you pick 'let him go') 1. It's okay 2. No! please stay!
If you pick 'it's okay' the princess is sad and then asks kip to give her time some alone, and if you pick 'no! please stay' she is angry and says 'forget about him!' He leave either way though.
I've been Luciano's partner since day 6 (the FAQ says he won't be your partner then, but it worked when I did it) if that helps any. I just don't want to go through the whole game only to find I messed it up!