Misguided practice of sinister cultivation techniques: Slander! The problem lies with you all, not me!

Thisisabizarreandmysteriousworldfilledwithvarioussinistercultivationmethods.Onceapersonbeginstocultivate,theywilleitherundergomildchangesinappearanceandtemperament,descendintomadness,orbecomeagreatelixirforevilbeingstoconsume...DuanYun,havingtransmigratedintothisworld,unexpectedlycomesacrossasupremeelixircultivationmanual,the'TrueExplanationoftheJadeSword.'Tohissurprise,heisaone-in-a-millioncultivationgeniuswho,unwittingly,transformsthemanualintosomethingextraordinary.GuidedbytheJadeSword,heisabletopiercethrougheverything.Later,ashismasteryovervariousmethodsgrows,DuanYun,carryingthephilosophyof'theenlightenedbenefittheworld,'neverkeepssecretsandspreadsmartialartsacrosstheland.Whowouldhavethought...“DuantheDemonmisledme!Hesaidthistechniqueenhancesyinandyang,butnowIcanonlysquattopee,boohoo...”“ItwastheDemonwhotaughtmethis'SevenPartsReturningQi'.Insteadofblessingme,itbroughtdisaster—Ieithergetkilledorstepindung.Thefortune-tellersaidI'velostseventypercentofmyluck.”“Don'ttrustawordofwhatDemonDuansays!ThefairyoftheMyriadWondersPalacewassupposedtoascendthewholepalacetotheheavens,butinonenight,shewaspossessedandturnedintoademoness,allduetothatolddemonDuan'shandiwork!”...DuanYunfindsthisincomprehensible.Allhedidwaspracticemartialarts,spreadtechniques,andoccasionallyemulatethelawsofnature,sohowdidhebecomenotoriousasademon?Thisisslander!Thesametechniquescausenoissuesforme,sotheproblemlieswithyouall,notme!