1. It's not a quest, it's a hint, and you can ignore it.
2. "Since at the beginning of the game there is a feeling that the dialogues will be at a higher level" I don't quite understand this sentence, please elaborate. Btw, I always try to improve the dialogues in every update so yes, dialogues will be redesigned in the future.
3. Urgh... the narrator said he won't interfere too much, for now he's just there to guide new players on how to play.