Saint Germain is mysterious. As a result, it is harder than normal to detect what answers are the "right" ones in his path. To help, here are results that ensure he does not kill Cardia and lets the player see the happy ending.

I think that covers it, and please let me know if there are any optimizations needed! Thank you. 

Thanks to the creators of this game.  Code:Realize - Guardians of Rebirth belongs to Aksys Games, Idea Factory, Design Factory, and Otomate. I make no profit off of this website or from writing this, and hope this article was informative. 

Further Reading: