I was testing that back-button before starting a level, so that's why I got confused first because nothing changes.
Just viewing that "friendly"-mode if it works on my browser/device (at least the hovering and cursor-change is updated now), the font-size still being different. and "hisses back" in first in-game paragraph ...won't do anything when getting clicked?
"Seongho, be polite,"-paragraph sounds interesting e.g. also the reply which state an expression which could be maybe bit more "family-friendly" (same for the paragraph where my reply being: "Thanks for walking me here, Crave." with twice a word that could be e.g. rather "hell no", sounds way more fitting).
"end of the demo" / 2x next game, if you technically re-nickname it somehow the in-game links could get affected in that case. I'd prefer e.g. listing them in the game's description, sounds quite easier also if you'd plan additional sequels added there?