Kimchi, mizuki ai, menaim, azure, rainy,.
Inviting guests is part of the narrative, hence, they play an important role in getting a good, bad, or normal ending.
Then you should check the list of answers given by.
But you can always Start Over from the Settings menu and keep mining hourglasses.
It will help us get rid of stress and feel better in general.
Any route you chose will be based on the interaction to other characters in the chat session.