Norasuko must be a fan of Koume Keito, or just know him from the youtubers Game Grumps. Knowing what the reference is on page 23 had me laughing like a maniac.
For those who don't know, it's from School Love Net, this page specifically /s/b51e003e90/1690422-78
The Game Grumps had a couple of episodes where they couldn't stop talking about it, starting with this one (right after the intro) https://www.youtube.com/watch?v=ThkTwjL9lSE&feature=youtu.be&t=5
The line is so specific, it has to be a reference.
Im-already-here drolgoth-is-no-husband-of-yours-elf drolgoth-takes-no-wives-only-slaves thats-not-a-word(wifely is the correct term) no-being-ever-bound-drolgoth-and-lived-elf you-shall-pay-for-this-humilation my-revenge-is-never-without-pain three-generations-before-you-shall-predict-my-wrath-today another-voice by-the-flames-her-breasts-are-bigger-than-slushs(wtf does this mean? Is there an apostrophe there?) I-must-take-you-for-my-collection such-shape-such-color she-has-shed-the-blood-of-demons-before I-can-see-it-in-her-eyes being-summoned-always-makes-me-hungry I-must-taste-this-woman Umph-mortal-women-are-always-talking-so-much All-want-is-to-unwrap-you Taste-human-flesh-again delicious I-could-eat-humans-forever No-one-can-imprison-drolgoth though-you-certainly-tried many-many-times Good-your-tongue-is-put-to-much-better-use when-not-for-talking yes-give-me-those-lo-big-fleshy-mps(is it lumps? wtf author) I-love-to-feel-a-beating-heart-against-my-meber((-__-) this is getting ridiculous, at least spell it right) what-a-firm-set-of-thighs almost-makes-me-want-to-feel-them-fight-back Hildegardes-mind-control-is-no-fun(spell or caster maybe?) though-knowing-of-your-past-exploits-maybe-for-the-best this-ass-is-perfectly-thight(oh lord the demon does puns too) I-cant-hold-myself-Im-gonna Argh-thats-it-im-spent all-my-sexual-energy-is-gone And-since-im-partly-source-for-hildegarde's-magic(so it was the spellcasters name.) I-wonder-what-that-means-for-her-mind-control-spell
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