Pg1. Elf: You're pretty skilled, for a human [Yes! I've been dreaming about defeating this elven swordswoman for such a long time.. ha, what should I do next?]
p2. Elf: What do you mean by "you'll find out soon enough?"
p3.elf: kuh.. Is this enough for you yet? You're just going to look right!? I don't want any more of this... (heavy breathing) miss elf looks damn fine in her underwear, and her bare feet are just too sexy elf: you pervert!
p4 elf: wh-what more do you want? Hurry up and get on with it! If you don't, I'll kill you Uuoh! Didn't expect her to look so sexy with just her equipment on. Haa I wonder, but would it be too much effort to remove everything? Ww-what did you say?
p5: "aah" "what are you planning to do to me" "argh, without my sword, I'm completely defenseless" You've suddenly become so self-conscious after removing your equipment, so CUTE! All right, let's get started then
p6. Hyaa! No way, what is that.. what you had in mind wasn't a duel? (liberties taken here, no idea what the original text is)
p13 guy: I'm sorry, but I can't hold back any longer If I'm fated to die by her hands afterwards, I may as well let everything out inside her pussy! You'll be fine since you're already wet
p17 I might as well cum in her cute ass / anus too! Elf: You sick pervert! I'll end your life, I swear on it!
p18: I'll cum plenty inside your butt!! Kuuuh! This elf girl's tight butt is just too good! Her opening is gripping, and squeezing (my dick)
p:19: To go that far... don't think I'll ever forgive you for this! I'll punish you with my own hands until you regret (what you've done) Yo-you're going to be my belonging till the day you die! (was that a proposal?) guy: I'm so happy that I could die, but.. even though I've cummed a month's worth, I feel like I could go for another 2, or 3 hours...
all those "You'll see"/"You will find out" comes from the word she keeps quoting, 「見抜き」, which can mean to see through/to see into or to find out. She thinks it's some kind of practice (hence the words skill and practice on page 6) until, well, when he brings his schlong out.
On page 19, she does use the word kill/slaughter, which would lose some of it's meaning if I used punished instead. She also used the words "without fail", which I skipped out on.