This is the mystery of the Heavenly Demon Sword Lotus! If it weren't for the complementary nature of the Dao of Slaughter and Survival Sword...
Otherwise...
Only by reaching the Qi Transformation Realm and guiding with True Qi can one nurture a sword lotus from within.
And now, Chu Feng has achieved this while only at the Hundred Refinements realm.
LitRPG: My Unique Talent Is Fate Hints
LitRPG / Adventure
LitRPG: Every Attack Gives 1 Permanent HP
LitRPG / Sci-fi
LitRPG: My Real Body Is the Cheat
LitRPG / Sci-fi
Global Stat Points: I Maxed Out Attack Speed
LitRPG / Urban
LitRPG: I became the God of Mining
LitRPG / Xuanhuan
After the World Became a Game I Chose Black Talent
LitRPG / Mature
Myth Invasion: I Kill Gods on Earth
Urban / Comedy
God-level Assassin, I'm the Shadow
LitRPG / Urban
Global Panic: The Gnoll That Farmed the World
LitRPG / Urban