Oh no, now I accidentally commited suicide!
I was previously thinking that yikes, Save & Quit and Quit (Kill Character) are much too close to each other in the menu... And now I proved it. The game didn't even ask for confirmation.
On the positive side, I'll probably get some Halls of Mist bugs fixed tonight instead of playing Epilogue.
I'll return to Epilogue later this week. I feel that my testing and learning period is over, and I can now start playing "for real", playing every character at the top of my ability. I'll even destroy my savefile to reset the Character Stats "corrupted" by lots of test characters. We'll see how many characters it takes to win the game.