During the Servanfes event, the gang works to create a masterpiece of a doujin with Jalter. They eventually manage by making a doujin about a girl and a monster falling in love.
Jalter isn't too sure about how to end her doujin, though. She asks you if it's truly a good ending if the monster stays a monster- how could this be in any way happy if the girl and the monster can't understand each other?
Your two dialogue options here are "the girl can understand the monster so it's fine" or "is mutual understanding truly that important?"
Now that struck me as odd the first time I played, because I expected an answer along the lines of "oh they can understand each other regardless, power of love bitches." But thinking about it more, I think it's a metaphor.
The metaphor is very obvious on Jalter's side- she's an avenger, aka evil by nature, and she is a made-up person to boot. Jalter has a truckload of issues that would make her identify as the monster. When Jalter asks if the monster can have a happy ending while still being a monster, what she's really asking is if she, herself, can ever be happy, when she is physically incapable of letting go of an hatred that doesn't even belong to her.
But what I find most interesting is Guda's answer. Unlike Jalter, Guda identifies to the girl in this story- how could they not, surrounded by monsters as they are? But Guda isn't scared of the monsters. Furthermore- Guda doesn't give a fuck about being understood by the people around them. As long as they can ease the life of the people around them, then it's fine.