First of all I need to say, I'm not a translator of a game. I play it for myself. Be aware of spoilers for Sakura Spirit
The last part of non understandable Texts for me The first part is here - http://masterrussian.net/f11/cannot-...-spirit-23337/
When someone tells me: Спокойной ночи!
Can I answer to him:
У тебя тоже!